Income Taxes (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Loss before income taxes:
Domestic	$ (138,599,000)	$ (46,836,000)	$ (75,425,000)
International	(1,107,000)
Loss from continuing operations before income taxes	(139,706,000)	(46,836,000)	(75,425,000)
Current
State	27,000	190,000	9,000
Total current (benefit)/provision for income taxes	27,000	190,000	9,000
Total (benefit)/provision for income taxes from continuing operations	27,000	190,000	9,000
Discontinued Operations:
Total (benefit)/provision for income taxes from discontinued operations			29,000
Federal income tax
Credit carryforwards
Tax credit carryforwards to reduce future taxable income	11,500,000
State income tax
Credit carryforwards
Tax credit carryforwards to reduce future taxable income	$ 2,600,000