CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Common Stock	Additional Paid in Capital	Accumulated Deficit	Total
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued for consulting services	$ 1,025	1,770,252		1,771,277
Common stock issued for consulting services (in shares)	1,025,574
Shares issued in underwritten public offerings, net of offering costs	$ 2,273	4,317,590		4,319,863
Shares issued in underwritten public offerings, net of offering costs (in shares)	2,272,727
Stock based compensation expense		3,257,305		3,257,305
Net loss			(12,855,767)	(12,855,767)
Balance at Sep. 30, 2017	$ 27,377	243,503,858	(236,673,155)	$ 6,858,080
Balance (in shares) at Sep. 30, 2017	27,377,057			27,377,057
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in private placement, net of offering costs	$ 2,735	4,230,265		$ 4,233,000
Common stock issued in private placement, net of offering costs (in shares)	2,735,000
Stock based compensation expense		1,356,351		1,356,351
Net loss			(11,692,928)	(11,692,928)
Balance at Sep. 30, 2018	$ 30,112	$ 249,090,474	$ (248,366,083)	$ 754,503
Balance (in shares) at Sep. 30, 2018	30,112,057			30,112,057