Stock Options Stock Options Nonvested Options (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Nonvested options outstanding, beginning balance	180	412
Nonvested options, Granted	1,210	14
Nonvested options, Vested	(77)	(139)
Nonvested options, Forfeited	(161)	(107)
Nonvested options outstanding, ending balance	1,152	180
Share-based Compensation Arrangements by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested options, Weighted Average Grant Date Fair Value, beginning balance	$ 1.72	$ 1.65
Nonvested options, Granted, Weighted Average Grant Date Fair Value	$ 2.30	$ 1.84
Nonvested options, Vested, Weighted Average Grant Date Fair Value	$ 1.27	$ 1.38
Nonvested options, Forfeited, Weighted Average Grant Date Fair Value	$ 2.33	$ 1.90
Nonvested options, Weighted Average Grant Date Fair Value, ending balance	$ 2.27	$ 1.72