Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Uncertain income tax positions
Decrease in liability for uncertain tax positions			$ 1,241,000
Interest expense recorded	0	0	0
Interest expense reversed			122,000
Accrued interest	0	0
Changes in uncertain income tax positions
Uncertain income tax positions at beginning of year			1,241,000
Decreases as a result of lapse of statute of limitations			(1,241,000)
State
Operating loss carryforwards
Net operating loss carryforwards	217,062,000
(Decrease) increase in valuation allowances	$ (1,805,000)	$ (24,000)	$ 1,777,000