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Long-Term Debt - Interest Cost RMB Loan (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2013
Debt Disclosure [Abstract] |  |
Interest paid in cash | $ 43,000 | $ 70,000
Amortization of the RMB Warrants discount | 54,000 | 108,000
Amortization of RMB deferred financing costs | 49,000 | 98,000
Total interest expense related to the RMB Loan | $ 146,000 | $ 276,000

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