Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Amount of tax computed using Federal statutory tax rate of 35% in all years	$ (14,365)	$ (45,807)	$ (38,589)
Non-taxable income	(169)	(196)	(418)
State income taxes, net of federal benefit	(1,768)	(5,627)	(4,919)
Valuation allowance on deferred tax assets	15,391	52,299	45,926
Other	(128)	(28)	(741)
Total income tax (benefit)/expense - continuing operations	$ (1,039)	$ 641	$ 1,259