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Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | $ 1,344 | $ 1,393
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 669 | 718
Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 675 | 675
Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Cash |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 55,283 | 54,812
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 55,283 | 54,812
Cash | Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Cash | Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Total cash |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 55,283 | 54,812
Total cash | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 55,283 | 54,812
Total cash | Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Total cash | Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Certificates of deposit |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 675 | 675
Certificates of deposit | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Certificates of deposit | Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 675 | 675
Certificates of deposit | Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Merchant bank deposit |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 669 | 718
Merchant bank deposit | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 669 | 718
Merchant bank deposit | Significant Other Observable Inputs (Level 2) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | 0 | 0
Merchant bank deposit | Significant Unobservable Inputs (Level 3) |  |
Presentation of fair value of financial assets using the inputs |  |
Total financial assets | $ 0 | $ 0

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