Other Accrued Liabilities - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued taxes	$ 1,562	$ 739
Accrued sales rebates	420	327
Accrued health insurance costs	285	96
Accrued warranty	50	49
Other	33	416
Accrued interest expense	20	637
Total other accrued liabilities	$ 2,370	$ 2,264