Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 333	$ 275	$ 642	$ 880
Unrecognized stock-based compensation expense	2,200		$ 2,200
Weighted average remaining vesting period			2 years 7 months
Selling, general and administrative expense
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	320	254	$ 595	810
Cost of sales
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 13	$ 21	$ 47	$ 70