STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
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)
Proceeds from the sale of common stock, shares		2,610,000
Proceeds from the sale of common stock, amount	47,363,426	$ 26,100	47,337,326	0
Warrant exercises, shares		1,597,870
Warrant exercises, amount	10,007,306	$ 15,978	9,991,328	0
Modification of warrants	24,387	$ 0	24,387	0
401(k) contributions paid in common stock, shares		17,990
401(k) contributions paid in common stock, amount	201,099	$ 180	200,919	0
Stock issued to nonemployees for service, shares		75,885
Stock issued to nonemployees for service, amount	1,195,704	$ 759	1,194,945	0
Equity-based compensation - employees, shares		(2,000)
Equity-based compensation - employees, amount	13,685,046	$ (20)	13,685,066	0
Option exercises, shares		149,788
Option exercises, amount	746,228	$ 1,498	744,730	0
Purchase of stock by officers and directors, shares		27,500
Purchase of stock by officers and directors, amount	220,000	$ 275	219,725	0
Share issuance costs	(274,535)	0	(274,535)	0
Net loss	(36,361,109)	$ 0	0	(36,361,109)
Balance, shares at Sep. 30, 2021		43,207,183
Balance, amount at Sep. 30, 2021	56,534,226	$ 432,072	474,298,566	(418,196,412)
Warrant exercises, shares		25,205
Warrant exercises, amount	171,814	$ 252	171,562	0
Stock issued to nonemployees for service, shares		156,547
Stock issued to nonemployees for service, amount	693,493	$ 1,567	691,926	0
Equity-based compensation - employees, amount	11,389,932		11,389,932	0
Option exercises, shares		6,500
Option exercises, amount	29,835	$ 65	29,770	0
Share issuance costs	(178,455)	0	(178,455)	0
Net loss	(36,700,681)	$ 0	0	(36,700,681)
401(k) contributions paid in common stock, shares		52,882
401(k) contributions paid in common stock, amount	223,043	$ 528	222,515	0
Balance, shares at Sep. 30, 2022		43,448,317
Balance, amount at Sep. 30, 2022	$ 32,163,207	$ 434,484	$ 486,625,816	$ (454,897,093)