Convertible Preferred Stock and Stock Warrants (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 14, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Aug. 12, 2009
Class of Warrant or Right [Line Items]
Exercisable Warrants expires				Dec. 08, 2014
Contingent Warrants expires				Sep. 11, 2014
Convertible Preferred Stock And Stock Warrants (Textual) [Abstract]
Issuance of cumulative convertible preferred stock and warrants						16,000
Issue price of cumulative convertible preferred stock and warrants						$ 1,000
Issuance of detachable warrants to acquire common stock						155
Issuance of detachable Contingent Warrants to acquire common stock						500
Proceeds from host contract				68.00%
Net proceeds from host contract						$ 10,800,000
Fair value of the detachable warrants						5,200,000
Beneficial conversion discount associated with preferred stock				5,200,000
Conversion period, in months						36 months
Convertible Preferred Stock shares issued upon conversion		434.782		434.782
Cumulative convertible preferred stock, liquidation preference		$ 300		$ 300
Dividends accrued, liquidation preference annual payment rate				15.00%
Criteria for availing obligation to pay dividend for the shareholders				Previously paid an amount at least eight quarterly dividends
Change in fair value of warrant liability		0	(7,802,000)	(2,649,000)	(18,609,000)
Revalued warrant liability		$ 6,500,000		$ 14,000,000
Volatility rate used to calculate fair value of warrant liability				58.10%
Risk-free rate of return used to calculate fair value of warrant liability				0.36%
Number of warrants exercisable				1,675,250
Assume Dividend Rate	0
Exercisable [Member]
Class of Warrant or Right [Line Items]
Exercise price of the exercisable warrants						2.31
Contingent [Member]
Class of Warrant or Right [Line Items]
Exercise price of the exercisable warrants						2.45
Exercisable and Contingent [Member]
Class of Warrant or Right [Line Items]
Exercise price of the exercisable warrants		1.21		1.21