Other Accrued Liabilities - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued interest expense	$ 516	$ 671
Accrued sales taxes	936	873
Accrued health insurance costs	118	305
Accrued sales rebates	145	363
Accrued warranty	58	78
Accrued facility expenses (see Note 5)	12	138
Other	61	64
Total other accrued liabilities	$ 1,846	$ 2,492