| **Impact of Accounting Changes**                        | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
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| **Accounting Changes and Error Corrections [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Impact of Accounting Changes                            | IMPACT OF ACCOUNTING CHANGES ASU 2011-11 - Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. The ASU amends Topic 210 by requiring additional improved information to be disclosed regarding financial instruments and derivative instruments that are offset in accordance with the conditions under ASC 210-20-45 or ASC 810-10-45 or subject to an enforceable master netting arrangement or similar agreement. The amendments are effective for annual and interim reporting periods beginning on or after January 1, 2013. The amendments did not have a material impact on the Corporation's Condensed Consolidated Financial Statements.ASU 2013-01- Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. The ASU amends Update 2011-11 to clarify that the scope applies to derivatives, repurchase and reverse repurchase agreements, and securities borrowing and lending transactions that are either offset in accordance with Section 210-20-45 or Section 815-10-45 or subject to master netting or similar arrangements. Other types of financial assets and liabilities subject to master netting or similar arrangements are not subject to the disclosure requirements in Update 2011-11. The amendments are effective for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. The amendments did not have a material impact on the Corporation's Condensed Consolidated Financial Statements.ASU 2013-02- Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The ASU requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. The disclosures required by the amendment were applied retrospectively for all comparative periods presented.  See NOTE 8.  ACCUMULATED OTHER COMPREHENSIVE INCOME, included within the Notes to Consolidated Condensed Financial Statements of this Form 10-Q.Accounting Standards Update No. 2013-04 - Liabilities (Topic 405).On February 28, 2013, FASB issued ASU 2013-04. The amendments in this Update provide guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this Update is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP.  The guidance requires an entity to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors.  The guidance in this Update also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. This Accounting Standards Update is the final version of Proposed Accounting Standards Update EITF12D - Liabilities (Topic 405) which has been deleted.  The amendments in this Update are effective for fiscal years beginning after December 31, 2013.  Early adoption is permitted. The Corporation will adopt the methodologies prescribed by this ASU by the date required, and does not anticipate that the ASU will have a material effect on its financial position or results of operations. |

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| - Definition
The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.
+ References
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