Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense	$ 1,800,000		$ 1,800,000
Weighted average remaining vesting period			3 years
Selling, General and Administrative [Member]
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	$ 284,000	$ 218,000	$ 632,000	$ 529,000