CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]	Total
Balance at Sep. 30, 2018	$ 753	$ 249,119,833	$ (248,366,083)		$ 754,503
Balance (in shares) at Sep. 30, 2018	752,802
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in public offering, net of offering costs	$ 137	2,262,234			2,262,371
Common stock issued in public offering, net of offering costs (in shares)	137,500
Impact of adoption of new accounting pronouncements included in accumulated deficit			493,223		493,223
Stock based compensation expense		490,244			490,244
Net loss			(3,234,320)		(3,234,320)
Balance at Dec. 31, 2018	$ 890	251,872,311	(251,107,180)		766,021
Balance (in shares) at Dec. 31, 2018	890,302
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in public offering, net of offering costs	$ 13	201,207			201,220
Common stock issued in public offering, net of offering costs (in shares)	12,500
Exercise of warrants	$ 41	718,023			718,064
Exercise of warrants (in shares)	40,578
Stock based compensation expense		267,094			267,094
Net loss			(2,686,757)		(2,686,757)
Balance at Mar. 31, 2019	$ 944	253,058,635	(253,793,937)		(734,358)
Balance (in shares) at Mar. 31, 2019	943,380
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of warrants	$ 15	269,422			269,437
Exercise of warrants (in shares)	14,798
Stock based compensation expense		154,304			154,304
Net loss			(1,477,911)		(1,477,911)
Balance at Jun. 30, 2019	$ 959	253,482,361	(253,793,937)		(1,788,528)
Balance (in shares) at Jun. 30, 2019	958,178
Balance at Sep. 30, 2019	$ 1,208	255,962,922	(256,805,589)	$ (7,040)	$ (848,499)
Balance (in shares) at Sep. 30, 2019	1,207,993				1,207,993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in public offering, net of offering costs	$ 2,285	10,527,745			$ 10,530,030
Common stock issued in public offering, net of offering costs (in shares)	2,285,000
Deemed dividend - warrant repricing		2,842	(2,842)
Stock based compensation expense		205,490			205,490
Net loss			(2,662,711)	(30)	(2,662,741)
Balance at Dec. 31, 2019	$ 3,493	266,698,999	(259,471,142)	(7,070)	7,224,280
Balance (in shares) at Dec. 31, 2019	3,492,993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of warrants	$ (567)	(2,767,566)	0	0	(2,768,133)
Exercise of warrants (in shares)	566,950
Stock based compensation expense		227,268			227,268
Net loss			(2,952,125)	1,220	(2,950,905)
Balance at Mar. 31, 2020	$ 4,060	269,693,833	(262,423,267)	(5,850)	7,268,776
Balance (in shares) at Mar. 31, 2020	4,059,943
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of warrants	$ 909	4,434,358			4,435,267
Exercise of warrants (in shares)	908,254
Stock based compensation expense		364,819			364,819
Net loss			(3,289,450)	(662)	(3,290,112)
Balance at Jun. 30, 2020	$ 4,969	$ 274,493,010	$ (265,712,717)	$ (6,512)	$ 8,778,750
Balance (in shares) at Jun. 30, 2020	4,968,197				4,968,197