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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Accrued Liabilities.    
Accrued payroll and payroll taxes $ 1,542 $ 1,460
Accrued royalties and commissions 608 1,401
Accrued advertising and promotion 527 1,305
Accrued other 1,919 2,024
Accrued liabilities $ 4,596 $ 6,190