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Facility Agreement (Tables) | 6 Months Ended
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Jun. 30, 2015
Accretion of Debt Issuance Cost and Debt Discount | Accretion of debt issuance cost and debt discount in connection with the Facility financing agreement during the three and six months ended June 30, 2015 and 2014 are as follows (in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Accretion expense- debt issuance cost |  | $ | 9 |  |  | $ | 27 |  |  | $ | 17 |  |  | $ | 309 |
Accretion expense – debt discount |  | $ | 380 |  |  | $ | 516 |  |  | $ | 745 |  |  | $ | 6,883 |

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- Definition Tabular disclosure of other assets and other liabilities not separately disclosed on the balance sheet. + References No definition available. + Details
Name: | us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration