Condensed interim consolidated statements of shareholders equity (USD $)	Common stock [Member]	Donated shares [Member]	Additional paid-in capital [Member]	Statutory reserve [Member]	Retained Earnings/ (accumulated deficit) [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Beginning Balance at Sep. 30, 2010	$ 63,613	$ 14,101,689	$ 124,551,522	$ 7,314,565	$ (19,542,138)	$ 28,010,135	$ (4,066,610)	$ 150,432,776
Beginning Balance (Shares) at Sep. 30, 2010	63,612,526						(721,030)
Share-based compensation for employee stock awards			934,335					934,335
Issuance of common stock to non- employee directors	4		(4)
Issuance of common stock to non- employee directors (Shares)	3,750
Appropriation to statutory reserves				330,738	(330,738)
Foreign currency translation adjustment						3,278,610		3,278,610
Net loss					(7,741,352)			(7,741,352)
Ending Balance at Mar. 31, 2011	63,617	14,101,689	125,485,853	7,645,303	(27,614,228)	31,288,745	(4,066,610)	146,904,369
Ending Balance (Shares) at Mar. 31, 2011	63,616,276						(721,030)
Beginning Balance at Sep. 30, 2011	63,817	14,101,689	126,135,472	7,645,303	(44,410,240)	35,804,409	(4,066,610)	135,273,840
Beginning Balance (Shares) at Sep. 30, 2011	63,816,276						(721,030)
Share-based compensation for employee stock awards			474,731					474,731
Appropriation to statutory reserves				140,854	(140,854)
Foreign currency translation adjustment						1,858,831		1,858,831
Net loss					(17,447,802)			(17,447,802)
Ending Balance at Mar. 31, 2012	$ 63,817	$ 14,101,689	$ 126,610,203	$ 7,786,157	$ (61,998,896)	$ 37,663,240	$ (4,066,610)	$ 120,159,600
Ending Balance (Shares) at Mar. 31, 2012	63,816,276						(721,030)