Consolidated Statements of Stockholders' Equity (USD $)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance at Sep. 30, 2010	$ 10,337,690	$ 306	$ 80,758,872	$ (70,421,488)
Beginning balance, shares at Sep. 30, 2010		30,614,789
Issuance of common stock:
Upon exercise of stock options	145,450	2	145,448
Upon exercise of stock options, shares	131,765	131,765
Upon exercise of warrants (net of non-cash offering costs of $2,164,773)	2,181,840	16	2,181,824
Upon exercise of warrants (net of non-cash offering costs of $2,164,773), shares		1,627,945
Issuance of warrants	2,164,773		2,164,773
Share-based compensation expense	422,643		422,643
Net income	5,022,902			5,022,902
Ending balance at Sep. 30, 2011	20,275,298	324	85,673,560	(65,398,586)
Ending balance, shares at Sep. 30, 2011		32,374,499
Issuance of common stock:
Upon exercise of stock options, shares	0
Share-based compensation expense	684,451		684,451
Net income	1,462,020			1,462,020
Ending balance at Sep. 30, 2012	$ 22,421,769	$ 324	$ 86,358,011	$ (63,936,566)
Ending balance, shares at Sep. 30, 2012		32,374,499