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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Payables and Accruals [Abstract]    
Accrued salaries and other compensation $ 1,098 $ 1,170
Sales and marketing programs 319 477
Product warranty 246 288
Other accrued liabilities 231 308
Total $ 1,894 $ 2,243