Cost Method Investments (Details 4) (Jinsheng [Member])	9 Months Ended
	Sep. 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	Jul. 22, 2012
Secured Convertible Note Amended Maturity Date	Jan. 22, 2013