CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($)	Common Stock	Additional Paid in Capital	Accumulated Deficit	Total
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in private placement, net of offering costs	$ 2,735	4,230,154		4,232,889
Common stock issued in private placement, net of offering costs (in shares)	2,735,000
Stock based compensation expense (benefit)		231,113		231,113
Net loss			(3,183,713)	(3,183,713)
Balance at Dec. 31, 2017	$ 30,112	247,965,125	(239,856,868)	8,138,369
Balance (in shares) at Dec. 31, 2017	30,112,057
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss				(5,329,922)
Balance at Mar. 31, 2018	$ 30,112	247,680,080	(242,003,077)	5,707,115
Balance (in shares) at Mar. 31, 2018	30,112,057
Balance at Dec. 31, 2017	$ 30,112	247,965,125	(239,856,868)	8,138,369
Balance (in shares) at Dec. 31, 2017	30,112,057
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation expense (benefit)		(285,045)		(285,045)
Net loss			(2,146,209)	(2,146,209)
Balance at Mar. 31, 2018	$ 30,112	247,680,080	(242,003,077)	5,707,115
Balance (in shares) at Mar. 31, 2018	30,112,057
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in public offering, net of offering costs	$ 5,500	2,256,871		$ 2,262,371
Common stock issued in public offering, net of offering costs (in shares)	5,500,000
Impact of adoption of new accounting pronouncements included in accumulated deficit			493,223	493,223
Stock based compensation expense (benefit)		490,244		490,244
Net loss			(3,234,320)	(3,234,320)
Balance at Dec. 31, 2018	$ 35,612	251,837,589	(251,107,180)	766,021
Balance (in shares) at Dec. 31, 2018	35,612,057
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss				$ (5,921,077)
Balance at Mar. 31, 2019	$ 37,735	253,021,844	(253,793,937)	$ (734,358)
Balance (in shares) at Mar. 31, 2019	37,735,157			37,735,157
Balance at Dec. 31, 2018	$ 35,612	251,837,589	(251,107,180)	$ 766,021
Balance (in shares) at Dec. 31, 2018	35,612,057
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in public offering, net of offering costs	$ 500	200,720		201,220
Common stock issued in public offering, net of offering costs (in shares)	500,000
Exercise of warrants	$ 1,623	716,441		718,064
Exercise of warrants (in shares)	1,623,100
Stock based compensation expense (benefit)		267,094		267,094
Net loss			(2,686,757)	(2,686,757)
Balance at Mar. 31, 2019	$ 37,735	$ 253,021,844	$ (253,793,937)	$ (734,358)
Balance (in shares) at Mar. 31, 2019	37,735,157			37,735,157