Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 361,000	$ 284,000	$ 805,000	$ 632,000
Unrecognized stock-based compensation expense	2,200,000		2,200,000
Weighted average remaining vesting period			3 years 1 month 6 days
Selling, general and administrative expense [Member]
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	320,000	236,000	720,000	514,000
Cost of sales [Member]
Stock-Based Compensation Expense [Abstract]
Total Stock-based compensation expense	$ 41,000	$ 48,000	$ 85,000	$ 118,000