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ShortTerm Debt - Short Term Debt Interest (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2015
RMB Loan interest    
Interest paid in cash $ 67 $ 133
Amortization of the RMB Warrants discount 54 108
Amortization of RMB deferred financing costs 49 98
Total interest expense related to the RMB Loan $ 170 $ 339