Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
OPERATING ACTIVITIES
Net loss	$ (53,163,348)	$ (35,239,498)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	262,140	554,069
Loss on extinguishment of debt		1,896,296
Non-cash interest expense	893,886	235,636
Stock-based compensation	4,887,287	2,807,429
Change in fair value of redemption feature		(1,796,982)
Change in fair value of warrant liability	452,146	(184,962)
Impairment of property and equipment		527,624
Gain on settlement of lease termination obligation	(552,340)
Loss on lease termination		680,017
Loss on equity method investment	46,340
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(1,729,944)	(310,270)
Other assets	298,523	(84,120)
Operating lease liability	(150,346)	(164,686)
Accounts payable	(198,469)	(1,489,760)
Accrued expenses	(5,299,163)	726,332
Income taxes payable		(2,805)
Other liabilities		55,587
Net cash used in operating activities	(54,253,288)	(31,790,093)
INVESTING ACTIVITIES
Investment in joint venture		(900,000)
Net cash used in investing activities		(900,000)
FINANCING ACTIVITIES
Proceeds from the sale of common stock, net of issuance costs	46,301,841	35,430,727
Proceeds from debt	10,000,000	904,200
Payment of debt issuance costs	(8,032)
Proceeds from exercise of common stock warrants	3,593,380	1,138,900
Payments of finance lease obligations	(29,778)	(215,074)
Repayment of stockholder notes	(3,612,500)
Repayment of debt	(50,285)	(48,202)
Net cash provided by financing activities	56,194,626	37,210,551
Net increase in cash	1,941,338	4,520,458
Cash and cash equivalents at beginning of period	12,535,986	8,015,528
Cash and cash equivalents at end of period	14,477,324	12,535,986
Supplemental disclosure of cash flow information
Cash paid for interest	$ 46,239	913,967
Accrued interest settled by conversion into common stock		1,531,004
Supplemental schedule of non-cash financing activities:
Senior secured notes principal converted into common stock		7,033,950
Unsecured notes principal converted into common stock		977,966
Issuance of exchange notes at estimated fair value		7,050,206
Issuance of redemption feature at estimated fair value		8,264,451
Series A-1 convertible preferred stock dividends and related settlement		166,133
Deferred offering costs and common stock issuance costs in accounts payable and accrued expenses		$ 84,230