CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($)	Common Stock	Additional Paid in Capital	Accumulated Deficit	Total
Balance at Sep. 30, 2014	$ 13,937	$ 198,277,859	$ (199,760,272)	$ (1,468,476)
Balance (in shares) at Sep. 30, 2014	13,935,954
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other	$ 6	(6)
Other (in shares)	6,440
Exercise of warrants and options cashlessly	$ 4	(4)
Exercise of warrants and options cashlessly (in shares)	4,376
Common stock issued for consulting services	$ 41	136,240		136,281
Common stock issued for consulting services (in shares)	40,500
Shares issued in underwritten public offerings, net of offering costs	$ 6,950	18,926,364		18,933,314
Shares issued in underwritten public offerings, net of offering costs (in shares)	6,950,000
Shares and warrants issued upon conversion of promissory notes and accrued interest	$ 567	2,824,024		2,824,591
Shares and warrants issued upon conversion of promissory notes and accrued interest (in shares)	567,308
Stock based compensation expense		4,022,283		4,022,283
Net loss			(11,881,137)	(11,881,137)
Balance at Sep. 30, 2015	$ 21,505	224,186,760	(211,641,409)	$ 12,566,856
Balance (in shares) at Sep. 30, 2015	21,504,578			21,504,578
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of warrants and options cashlessly	$ 49	(49)
Exercise of warrants and options cashlessly (in shares)	48,918
Common stock issued for consulting services	$ 24	78,106		$ 78,130
Common stock issued for consulting services (in shares)	24,000			24,000
Shares issued in underwritten public offerings, net of offering costs	$ 2,500	7,850,655		$ 7,853,155
Shares issued in underwritten public offerings, net of offering costs (in shares)	2,500,000
Exercise of warrants for cash	$ 1	4,409		4,410
Exercise of warrants for cash (in shares)	1,260
Stock based compensation expense		2,038,830		2,038,830
Net loss			(12,175,979)	(12,175,979)
Balance at Sep. 30, 2016	$ 24,079	$ 234,158,711	$ (223,817,388)	$ 10,365,402
Balance (in shares) at Sep. 30, 2016	24,078,756			24,078,756