Employee Share-Based Compensation (Details 3) (RestrictedStockMember [Member], USD $)	6 Months Ended
	Jun. 30, 2012
RestrictedStockMember [Member]
Summary of activity of restricted stock awards granted to employees- Shares
Unvested shares at December 31, 2011	1,000,000
Granted	2,250,000
Vested
Forfeited	(2,750,000)
Unvested shares at June 30, 2012	500,000
Expected to Vest as of June 30, 2012	500,000
Weighted Average Award-Date Fair Value
Unvested shares at December 31, 2011	$ 1.27
Granted	$ 0.69
Vested
Forfeited	$ 0.95
Unvested shares at June 30, 2012	$ 0.43
Expected to Vest as of June 30, 2012	$ 0.43