Consolidated statements of shareholders equity (USD $)	Common Stock [Member]	DonatedShares [Member]	Additional Paid-In Capital [Member]	StatutoryReserve [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Beginning Balance at Sep. 30, 2008	$ 57,677	$ 14,101,689	$ 97,286,286	$ 6,917,943	$ 27,628,860	$ 25,146,155	$ (4,066,610)	$ 167,072,000
Beginning Balance (Shares) at Sep. 30, 2008	57,676,481						(721,030)
Share-based compensation for employee stock option awards			3,724,901					3,724,901
Exercise of stock options awards	46		150,283					150,329
Exercise of stock options awards (Shares)	46,000
Issuance of common stock to non- employee directors	15		(15)
Issuance of common stock to non- employee directors (Shares)	15,000
Appropriation to statutory reserves				309,252	(309,252)
Foreign currency translation adjustment						(354,867)		(354,867)
Net loss					(13,991,493)			(13,991,493)
Ending Balance at Sep. 30, 2009	57,738	14,101,689	101,161,455	7,227,195	13,328,115	24,791,288	(4,066,610)	156,600,870
Ending Balance (Shares) at Sep. 30, 2009	57,737,481						(721,030)
Share-based compensation for employee stock option awards			3,779,861					3,779,861
Exercise of stock options awards	70		226,527					226,597
Exercise of stock options awards (Shares)	70,045
Issuance of common stock to non- employee directors	15		(15)
Issuance of common stock to non- employee directors (Shares)	15,000
Issuance of new common stock	5,790		19,383,694					19,389,484
Issuance of new common stock (Shares)	5,790,000
Appropriation to statutory reserves				87,370	(87,370)
Foreign currency translation adjustment						3,218,847		3,218,847
Net loss					(32,782,883)			(32,782,883)
Ending 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
Ending Balance (Shares) at Sep. 30, 2010	63,612,526						(721,030)
Share-based compensation for employee stock option awards			1,584,154					1,584,154
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						7,794,274		7,794,274
Issuance of common stock to employees	200		(200)
Issuance of common stock to employees (Shares)	200,000
Net loss					(24,537,364)			(24,537,364)
Ending 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
Ending Balance (Shares) at Sep. 30, 2011	63,816,276						(721,030)