Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES
Net loss	$ (22,303,015)	$ (19,986,640)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	351,623	1,639,618
Loss on extinguishment of debt	8,060,580	183,554
Non-cash interest expense	135,787	895,255
Stock-based compensation	664,016	1,140,031
Change in fair value of redemption feature	(1,796,982)
Change in fair value of warrant liability	(202,142)	(334,592)
Impairment of property and equipment	423,328	2,911,138
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	229,616	(71,433)
Other assets	(83,358)	42,527
Operating lease liability	(80,572)
Accounts payable	1,028,736	233,164
Accrued expenses	(233,806)	(778,391)
Deferred revenue		(1,693,738)
Other liabilities	49,455	(221,287)
Net cash used in operating activities	(13,756,734)	(16,040,794)
INVESTING ACTIVITIES
Purchase of property and equipment		(286,569)
Net cash used in investing activities		(286,569)
FINANCING ACTIVITIES
Proceeds from the sale of common stock, net of offering costs	9,457,400	19,808,317
Proceeds from exercise of common stock warrants	1,138,900
Payments of finance lease obligations	(178,757)	(415,697)
Repayment of debt	(23,414)	(4,627,180)
Net cash provided by financing activities	10,394,129	14,765,440
Net decrease in cash	(3,362,605)	(1,561,923)
Cash at beginning of period	8,015,528	1,717,391
Cash at end of period	4,652,923	155,468
Supplemental disclosure of cash flow information
Cash paid for interest	718,521	1,681,746
Accrued interest settled by conversion into common stock		1,393
Supplemental schedule of noncash investing activities:
Purchases of property and equipment in accounts payable and accrued expenses		1,095,266
Supplemental schedule of noncash financing activities:
Carrying amount of senior secured notes converted into common stock		400,575
Issuance of capital lease obligations in connection with purchase of property and equipment		48,682
Unsecured notes and accrued interest converted into common stock	1,548,426
Issuance of exchange notes at estimated fair value	7,050,206
Issuance of redemption feature at estimated fair value	8,264,451
Change in fair value of convertible senior secured notes warrants recorded as debt discount		1,466,710
Series A-1 convertible preferred stock dividends and related settlement	166,133	304,779
Deferred offering costs and common stock issuance costs in accounts payable and accrued expenses	260,452	74,975
Accrued directors' fees settled in fully vested stock options	$ 49,121	$ 49,121