STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance, shares at Sep. 30, 2019		35,231,776
Balance, amount at Sep. 30, 2019	$ 5,133,667	$ 352,318	$ 358,507,603	$ (353,726,254)
Adoption of new accounting standard	2,146,195			2,146,195
Issuance of common stock, shares		606,395
Issuance of common stock, amount	5,050,003	$ 6,064	5,043,939	0
Warrant exercises, shares		132,900
Warrant exercises, amount	297,101	$ 1,329	295,772	0
Equity based compensation - employees, amount	1,800,225	$ 0	1,800,225	0
401(k) contributions paid in common stock, shares		4,474
401(k) contributions paid in common stock, amount	40,937	$ 45	40,892	0
Stock issued to nonemployees for service, shares		15,819
Stock issued to nonemployees for service, amount	84,447	$ 158	84,289	0
Purchase of stock by officer, shares		3,725
Purchase of stock by officer, amount	25,000	$ 37	24,963	0
Share issuance costs	(92,150)	0	(92,150)	0
Net loss	(5,531,360)	$ 0	0	(5,531,360)
Balance, shares at Dec. 31, 2019		35,995,089
Balance, amount at Dec. 31, 2019	8,954,065	$ 359,951	365,705,533	(357,111,419)
Balance, shares at Sep. 30, 2020		38,730,150
Balance, amount at Sep. 30, 2020	19,726,674	$ 387,302	401,174,675	(381,835,303)
Warrant exercises, shares		15,000
Warrant exercises, amount	89,250	$ 150	89,100	0
Equity based compensation - employees, amount	3,296,309	$ (20)	3,296,329	0
401(k) contributions paid in common stock, shares		3,564
401(k) contributions paid in common stock, amount	41,671	$ 36	41,635	0
Stock issued to nonemployees for service, shares		15,044
Stock issued to nonemployees for service, amount	152,450	$ 150	152,300	0
Share issuance costs	(117,021)	0	(117,021)	0
Net loss	(7,936,864)	$ 0	0	(7,936,864)
Proceeds from the sale of common stock, shares		1,000,000
Proceeds from the sale of common stock, amount	$ 13,559,500	$ 10,000	13,549,500	0
Equity based compensation - employees, shares		(2,000)
Option exercises, shares	5,300	5,300
Option exercises, amount	$ 23,511	$ 53	23,458	0
Modification of warrants	192	$ 0	192	0
Balance, shares at Dec. 31, 2020		39,767,058
Balance, amount at Dec. 31, 2020	$ 28,835,672	$ 397,671	$ 418,210,168	$ (389,772,167)