| **Regulatory Matters (Details) (USD $)**                                                                                                                           | 12 Months Ended                                                                                                                                                                                                                                                                                               | 3 Months Ended                                                                                                                                                                                                                                                                                                             | 1 Months Ended                                                                                                                                                                                                |
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| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Regulatory assets                                                                                                                                                  | $ 29,088,000us-gaap_RegulatoryAssetsCurrent                                                                                                                                                                                                                                                                   | $ 12,595,000us-gaap_RegulatoryAssetsCurrent                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                          |   |
| Robeson LNG Development Cost [Member]                                                                                                                              |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Regulatory assets                                                                                                                                                  | 917,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_RegulatoryAssetAxis= pny_RobesonLngDevelopmentCostMember                                                                                                                                                                                                      | 783,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_RegulatoryAssetAxis= pny_RobesonLngDevelopmentCostMember                                                                                                                                                                                                                   |                                                                                                                                                                                                          |   |
| Environmental Restoration Costs [Member]                                                                                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Regulatory assets                                                                                                                                                  | 1,568,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_RegulatoryAssetAxis= us-gaap_EnvironmentalRestorationCostsMember                                                                                                                                                                                            | 1,554,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_RegulatoryAssetAxis= us-gaap_EnvironmentalRestorationCostsMember                                                                                                                                                                                                         |                                                                                                                                                                                                          |   |
| NORTH CAROLINA                                                                                                                                                     |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Capital Investments In Integrity and Safety Projects                                                                                                               | 241,900,000pny_CapitalInvestmentsInIntegrityandSafetyProjects/ us-gaap_StatementGeographicalAxis= stpr_NC                                                                                                                                                                                                     |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| TENNESSEE                                                                                                                                                          |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Capital Investments In Integrity and Safety Projects                                                                                                               | 54,000,000pny_CapitalInvestmentsInIntegrityandSafetyProjects/ us-gaap_StatementGeographicalAxis= stpr_TN                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| North Carolina Utilities Commission [Member] | NCUC Authorized IMR Adjustment January 2015 [Member]                                                                |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Approved Rate Increase (Decrease) Amount                                                                                                          |                                                                                                                                                                                                                                                                                                          | 26,600,000us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_NCUCAuthorizedIMRAdjustmentJanuary2015Member/ us-gaap_RegulatoryAgencyAxis= pny_NorthCarolinaUtilitiesCommissionMember                                                                           |                                                                                                                                                                                                          |   |
| Public Service Commission of South Carolina [Member] | Settlement With Office of Regulatory Staff October 2014 [Member]                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities, Approved Return on Equity, Percentage                                                                                                            |                                                                                                                                                                                                                                                                                                          | 10.20%us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_SettlementWithOfficeofRegulatoryStaffOctober2014Member/ us-gaap_RegulatoryAgencyAxis= pny_PublicServiceCommissionofSouthCarolinaMember                                                                 |                                                                                                                                                                                                          |   |
| Public Service Commission of South Carolina [Member] | Settlement With Office of Regulatory Staff October 2014 [Member] | Robeson LNG Development Cost [Member]    |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Regulatory assets                                                                                                                                                  | 500,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_SettlementWithOfficeofRegulatoryStaffOctober2014Member/ us-gaap_RegulatoryAgencyAxis= pny_PublicServiceCommissionofSouthCarolinaMember/ us-gaap_RegulatoryAssetAxis= pny_RobesonLngDevelopmentCostMember         |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Amortization Time Period For Specified Expenses                                                                                                                    |                                                                                                                                                                                                                                                                                                          | 1 year                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                          |   |
| Regulatory Current Asset, End Date for Recovery                                                                                                                    |                                                                                                                                                                                                                                                                                                          | 10/31/2015                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                          |   |
| Public Service Commission of South Carolina [Member] | Settlement With Office of Regulatory Staff October 2014 [Member] | Environmental Restoration Costs [Member] |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Regulatory assets                                                                                                                                                  | 100,000us-gaap_RegulatoryAssetsCurrent/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_SettlementWithOfficeofRegulatoryStaffOctober2014Member/ us-gaap_RegulatoryAgencyAxis= pny_PublicServiceCommissionofSouthCarolinaMember/ us-gaap_RegulatoryAssetAxis= us-gaap_EnvironmentalRestorationCostsMember |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Amortization Time Period For Specified Expenses                                                                                                                    |                                                                                                                                                                                                                                                                                                          | 1 year                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                          |   |
| Regulatory Current Asset, End Date for Recovery                                                                                                                    |                                                                                                                                                                                                                                                                                                          | October 31, 2015                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                          |   |
| Tennessee Regulatory Authority [Member] | Adjustment Filed August 2013 [Member]                                                                                    |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Requested [Abstract]**                                                                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Requested Rate Increase (Decrease) Amount                                                                                                         |                                                                                                                                                                                                                                                                                                          | 3,700,000us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_AdjustmentFiledAugust2013Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember                                                                                            |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Expense Related to Actual Cost Adjustment                                                                                                                          |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       | 1,700,000pny_ExpenseRelatedtoActualCostAdjustment/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_AdjustmentFiledAugust2013Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember |   |
| Tennessee Regulatory Authority [Member] | Tennessee Requested ACA December 2014 [Member]                                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Requested [Abstract]**                                                                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Requested Rate Increase (Decrease) Amount                                                                                                         |                                                                                                                                                                                                                                                                                                          | 2,000,000us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_TennesseeRequestedACADecember2014Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember                                                                                    |                                                                                                                                                                                                          |   |
| Tennessee Regulatory Authority [Member] | TRA Approved ACA Adjustment January 2015 [Member]                                                                        |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Approved Rate Increase (Decrease) Amount                                                                                                          |                                                                                                                                                                                                                                                                                                          | 2,000,000us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_TRAApprovedACAAdjustmentJanuary2015Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember                                                                                   |                                                                                                                                                                                                          |   |
| Tennessee Regulatory Authority [Member] | Amortization And Refund For Excess Deferred Taxes [Member]                                                               |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Requested [Abstract]**                                                                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Requested Rate Increase (Decrease) Amount                                                                                                         |                                                                                                                                                                                                                                                                                                          | (4,700,000)us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_AmortizationAndRefundForExcessDeferredTaxesMember/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember                                                                        |                                                                                                                                                                                                          |   |
| Proposed Amortization Time Period For Specified Expenses                                                                                                           |                                                                                                                                                                                                                                                                                                          | 3 years                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                          |   |
| Tennessee Regulatory Authority [Member] | Tennessee Ruling Compressed Natural Gas February 2015 [Member]                                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Deferral CNG Equipment In Utility Rate Base                                                                                                                        |                                                                                                                                                                                                                                                                                                          | 4,700,000pny_DeferralCNGEquipmentInUtilityRateBase/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_TennesseeRulingCompressedNaturalGasFebruary2015Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember                                                                                       |                                                                                                                                                                                                          |   |
| Subsequent Event [Member] | Tennessee Regulatory Authority [Member] | TRA Approved IMR Adjustment February 2015 [Member]                                           |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Approved Rate Increase (Decrease) Amount                                                                                                          |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          | 6,500,000us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_TRAApprovedIMRAdjustmentFebruary2015Member/ us-gaap_RegulatoryAgencyAxis= pny_TennesseeRegulatoryAuthorityMember/ us-gaap_SubsequentEventTypeAxis= us-gaap_SubsequentEventMember |
| Public Utilities, Disclosure of Rate Matters                                                                                                                       |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          | In December 2014, we filed a petition with the TRA seeking authority to collect through adjusted rates an additional $6.5 million in annual IMR margin revenues effective January 2015 based on $54 million of capital investments in integrity and safety projects over the twelve-month period ended October 31, 2014. In January 2015, the TRA accepted and approved the requested IMR rate adjustment and issued its written order in February 2015. |
| Subsequent Event [Member] | Tennessee Regulatory Authority [Member] | Tennessee Ruling Compressed Natural Gas February 2015 [Member]                               |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities, Disclosure of Rate Matters                                                                                                                       |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          | In September 2014, we filed a petition with the TRA seeking authority to implement a compressed natural gas (CNG) infrastructure rider to recover the costs of our capital investments in infrastructure and equipment associated with this alternative motor vehicle transportation fuel. We proposed that the tariff rider be effective October 1, 2014 with an initial rate adjustment on November 1, 2014 based on capital expenditures incurred through June 2014 and for rates to be updated annually outside of general rate cases for the return of and on these capital investments. In November 2014, the TRA consolidated this docket with a separate petition we filed seeking modifications to our tariff regarding service to customers using natural gas as a motor fuel. A hearing on this matter was held in January 2015. In February 2015, the TRA (1) denied approval of the proposed tariff rider, (2) ruled that our retail CNG motor fuel service should be unregulated and no longer provided under our regulated tariff, and (3) approved the proposed modification to our tariff providing natural gas for motor fuel purposes at customer premises. The TRA indicated that we may seek recovery of our prior investments in CNG equipment of $4.7 million since our last rate proceeding in utility rate base in our next general rate case proceeding as the investments were made in good faith under the assumption retail CNG motor fuel would be a regulated service. We are waiting on the TRA's written order. |
| Margin [Member] | Public Service Commission of South Carolina [Member] | Settlement With Office of Regulatory Staff October 2014 [Member]                          |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| **Public Utilities, Rate Matters, Approved [Abstract]**                                                                                                            |                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                          |   |
| Public Utilities Approved Rate Increase (Decrease) Amount                                                                                                          |                                                                                                                                                                                                                                                                                                          | $ (2,900,000)us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount/ us-gaap_IncomeStatementLocationAxis= pny_MarginMember/ us-gaap_PublicUtilitiesRegulatoryProceedingAxis= pny_SettlementWithOfficeofRegulatoryStaffOctober2014Member/ us-gaap_RegulatoryAgencyAxis= pny_PublicServiceCommissionofSouthCarolinaMember |                                                                                                                                                                                                          |   |

| X                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Time period allowed by the commission to amortize expenses.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of the Company's capital investments in integrity and safety projects.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of prior investments in Compressed Natural Gas (CNG) equipment that we have put into service since our last rate case proceeding that we may seek recovery of in our next general rate case proceeding.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
Expense recorded for deferred gas cost that will not be included in the actual cost adjustment (ACA) settlement with the regulatory agency.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amortization time period proposed to the commission for specified expenses.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                 |
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| - Definition
Amount of public utility's approved rate increase (decrease) by regulatory agency.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                               |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of public utility's approved return on equity.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Describes all of the specific events that have or may impact rates and amortization of regulatory assets and liabilities (for example, pending or recently concluded regulatory proceedings, environmental requirements). Specifics may include quantifications related to rates, costs, and earnings. Events may relate to rate moratoriums or price caps.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of public utility's requested rate increase (decrease) with regulatory agency.
+ References
No definition available.
+ Details**Name:**us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The end date for recovery of the individual regulatory current asset in a schedule of regulatory current assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382
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| X                                                                                                                                            |
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| X                                                                                                                                                               |
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| X                                                                                                                                                       |
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| X                                                                                                                                 |
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