| **Schedule II - Valuation and Qualifying Accounts**            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                         |
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| **Schedule II - Valuation and Qualifying Accounts [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule II - Valuation and Qualifying Accounts [Text Block]   |  Allowance for Doubtful AccountsYear ended December 31, Beginning Balance  AdditionsCharged to General and administrative expenses  DeductionsAccounts Written Off During Period  Ending Balance (in thousands)        2013 $-  $7  $-  $7        |

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| - Definition
The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12
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| - Details**Name:**us-gaap_ValuationAndQualifyingAccountsAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |