Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities - Schedule of Accrued Liabilities (Details)

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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Accrued Liabilities, Current [Abstract]    
Commissions $ 379 $ 466
Payroll and related expenses 229 461
Royalties 259 416
Interest payable 112 76
Final loan payment fees 1,433 1,333
Other 424 431
Total accrued liabilities $ 2,836 $ 3,183