Stock-Based Compensation - Schedule of Stock Option Outstanding (Details) (USD $)				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Range One [Member]	Dec. 31, 2012 Range Two [Member]	Dec. 31, 2012 Range Three [Member]
Options Outstanding, Range of exercise price, lower limit				$ 1.01	$ 3.01	$ 5.01
Options Outstanding, Range of exercise price, upper limit				$ 3.00	$ 5.00	$ 7.50
Options Outstanding, Number	449	513	613	194	155	100
Options Outstanding, Weighted Average Remaining Contractual Life in Years				3 years 4 months 24 days	2 years 9 months 18 days	3 years
Options Outstanding, Weighted Average Exercise Price	$ 3.61	$ 3.61	$ 3.41	$ 1.74	$ 3.29	$ 7.50
Options Exercisable, Number	449	507		194	155	100
Options Exercisable, Weighted Average Exercise Price	$ 3.56	$ 3.64		$ 1.74	$ 3.29	$ 7.50