Stockholders' Equity (Deficit) - Common Stock (Details)						1 Months Ended				2 Months Ended	12 Months Ended
	Mar. 26, 2021 USD ($)	Jul. 16, 2020 USD ($) $ / shares shares	Mar. 19, 2020 item shares	Jan. 27, 2020 item individual $ / shares shares	Sep. 11, 2017 USD ($) $ / shares shares	Nov. 30, 2021 USD ($) $ / shares shares	Feb. 28, 2021 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Feb. 29, 2020 USD ($) $ / shares shares	Nov. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) shares	Mar. 24, 2021 shares	Mar. 23, 2021 shares	Dec. 23, 2019 $ / shares	Apr. 12, 2019 $ / shares
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Issuance of vested restricted stock units (in shares)												109
Number of share issued		823,045	7,244,739			46,000,000
Shares of common stock issuable upon exercise of warrants				4,657,852		2,100,000				2,100,000	5,128,829
Shares issued, price per share | $ / shares		$ 1.215				$ 1.25				$ 1.25
Proceeds from issuance of stock | $		$ 1,000,000.0				$ 54,000,000.0					$ 46,301,841	$ 35,430,727
Exercise price per share | $ / shares				$ 0.232		$ 1.5625				$ 1.5625
Warrants exercise term						5 years				5 years
Number of shares issued upon vesting of restricted stock units (in shares)												109
Common stock, shares authorized											325,000,000	325,000,000	325,000,000	200,000,000
Number of principals | item			4
Number of executive officers			2	2
MTTR, LLC ("MTTR")
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued				7,244,739
Number of principals | item				4
Direct registered offering
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued								8,407,411	7,598,426
Shares of common stock issuable upon exercise of warrants								588,519	3,799,213
Shares issued, price per share | $ / shares								$ 1.215	$ 1.016
Proceeds from issuance of stock | $								$ 10,200,000	$ 7,700,000
Exercise price per share | $ / shares								$ 1.51875
Warrants exercise term								5 years
Private Placement
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued							3,000,000	16,000,000	2,460,630
Shares of common stock issuable upon exercise of warrants									1,230,315
Shares issued, price per share | $ / shares							$ 1.00	$ 1.00	$ 1.016
Proceeds from issuance of stock | $							$ 3,000,000.0	$ 16,000,000.0	$ 2,500,000
Exercise price per share | $ / shares									$ 0.9535
Warrants exercise term									4 years
Placement Agent
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Shares of common stock issuable upon exercise of warrants									531,890
Exercise price per share | $ / shares									$ 1.27
Warrants exercise term									5 years
Underwritten Public Offering
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued							38,593,767
Shares of common stock issuable upon exercise of warrants							2,116,364
Shares issued, price per share | $ / shares							$ 1.00
Proceeds from issuance of stock | $							$ 35,500,000
Exercise price per share | $ / shares							$ 1.25
Warrants exercise term							5 years
GMS Ventures & Investments
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued					1,013,627		8,360,000
Shares issued, price per share | $ / shares					$ 1.00
Proceeds from issuance of stock | $					$ 1,000,000.0
ATM Offering
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued										1,773,974	2,855,190
Proceeds from issuance of stock | $										$ 3,500,000	$ 7,200,000
Aggregate offering price | $	$ 40,000,000.0
Amount reclassified on additional paid in capital | $	$ 197,654
Deferred costs | $											161,997
Percentage of commission on sale of common stock	3.00%
Payment of fees to sales agent | $											$ 200,000
Common stock warrants
Convertible Preferred Stock And Stockholders' Equity (Deficit) [Line Items]
Number of share issued												10,157,050
Shares of common stock issuable upon exercise of warrants											3,642,138
Proceeds from issuance of stock | $											$ 3,593,380
Exercise price per share | $ / shares											$ 0.9866				$ 0.2320	$ 2.90