Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 275	$ 361	$ 880	$ 805
Unrecognized stock-based compensation expense	2,200		$ 2,200
Weighted average remaining vesting period			3 years
Selling, general and administrative expense
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	254	320	$ 810	720
Cost of sales
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 21	$ 41	$ 70	$ 85