Cost Method Investments (Details 4) (Jinsheng [Member])	6 Months Ended
	Jun. 30, 2012
Jinsheng [Member]
Cost Method Investments [Abstract]
Percentage of ownership interest in Jinsheng (in hundredths)	6.20%
Number of series 2 ordinary shares secured against convertible security notes	16,565,534
Series A-2 Preferred Shares	16,565,534
Noncontrolling Interest, Increase in Ownership Percentage	2.275%
Secured Convertible Note Original Maturity Date	Jan. 22, 2012
Secured Convertible Note Amended Maturity Date	Jul. 22, 2012
Extension Option Period Available On Maturing Debt	P6M
Secured Convertible Note Extended Maturity Date	Jan. 22, 2013