Stockholders' Equity (Deficit) - Common Stock (Details)							1 Months Ended			3 Months Ended		12 Months Ended
	May 09, 2022 USD ($) shares	Apr. 04, 2022 shares	Mar. 15, 2022 shares	Mar. 14, 2022 USD ($) $ / shares shares	Jan. 10, 2022 USD ($)	Mar. 15, 2021 shares	Oct. 31, 2022 shares	Oct. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2021 USD ($) $ / shares	Apr. 25, 2022 $ / shares shares	Feb. 28, 2022 $ / shares	Sep. 30, 2021 $ / shares	Feb. 26, 2021 $ / shares shares	Oct. 02, 2020 USD ($)	Feb. 10, 2020 $ / shares
Sale of stock
Common stock that can be purchased with warrants (in shares)								333,333		1,242,813
Stock stated value | $ / shares										$ 0.0001		$ 0.0001
Perceptive Warrants | Perceptive Credit Agreement
Sale of stock
Common stock that can be purchased with warrants (in shares)										35,000						11,250
Exercise price of warrants (in dollars per share) | $ / shares																$ 114.80
First Seven Lakhs Shares | Perceptive Credit Agreement
Sale of stock
Common stock that can be purchased with warrants (in shares)								17,500		17,500
Exercise price of warrants (in dollars per share) | $ / shares								$ 153.20		$ 129.20				$ 153.20	$ 186.80			$ 149.60
Remaining Seven Lakhs Shares | Perceptive Credit Agreement
Sale of stock
Common stock that can be purchased with warrants (in shares)								17,500		17,500
Exercise price of warrants (in dollars per share) | $ / shares								$ 124.40		$ 104.80				124.40	149.60			$ 186.80
Warrants | Perceptive Credit Agreement
Sale of stock
Common stock that can be purchased with warrants (in shares)								11,250		11,250
Exercise price of warrants (in dollars per share) | $ / shares								$ 97.20		$ 82.40				$ 97.20	$ 114.80
2020 Shelf Registration Statement
Sale of stock
Aggregate amount of securities issuable | $																	$ 200,000,000.0
2022 Preferred Stock Offering
Sale of stock
Common stock that can be purchased with warrants (in shares)				30,313
Proceeds from issuance of common stock in public offering, net of offering costs | $				$ 4,100,000
Fair Value Of Warrants | $				$ 2,100,000
Exercise price of warrants (in dollars per share) | $ / shares				$ 10.00
Conversion price | $ / shares				$ 8.00
Preferred Stock, convertible, shares issuable				606,250
Exercisable term				6 months
Stock stated value | $ / shares				$ 1,000
Warrants and rights outstanding, term				5 years
2022 Preferred Stock Offering | Strike price
Sale of stock
Warrants, Measurement Input				10.40
2022 Preferred Stock Offering | Fair value
Sale of stock
Warrants, Measurement Input				9.48
2022 Preferred Stock Offering | Series A Warrants
Sale of stock
Common stock that can be purchased with warrants (in shares)				606,250									212,188
Exercise price of warrants (in dollars per share) | $ / shares				$ 10.40
Exercisable term				6 months
Warrants and rights outstanding, term				5 years
2022 Preferred Stock Offering | Series A Warrants | Volatility
Sale of stock
Warrants, Measurement Input				1.119
2022 Preferred Stock Offering | Series A Warrants | Risk free interest rate
Sale of stock
Warrants, Measurement Input				0.021
2022 Preferred Stock Offering | Series A Warrants | Expected life
Sale of stock
Warrants, Measurement Input				5.5
2022 Preferred Stock Offering | Series A Warrants | Subsequent Event [Member]
Sale of stock
Exercise price of warrants (in dollars per share) | $ / shares													$ 10.40
2022 Preferred Stock Offering | Series B Warrants
Sale of stock
Common stock that can be purchased with warrants (in shares)				606,250
Exercise price of warrants (in dollars per share) | $ / shares				$ 10.40
Exercisable term				6 months
Warrants and rights outstanding, term				1 year 6 months
2022 Preferred Stock Offering | Series B Warrants | Volatility
Sale of stock
Warrants, Measurement Input				0.697
2022 Preferred Stock Offering | Series B Warrants | Risk free interest rate
Sale of stock
Warrants, Measurement Input				0.016
2022 Preferred Stock Offering | Series B Warrants | Expected life
Sale of stock
Warrants, Measurement Input				1.5
At-the-market sales | Common stock
Sale of stock
Issuance of common stock (in shares)									172,879	25,623	13,023
Proceeds from issuance of common stock in public offering, net of offering costs | $												$ 9,300,000
At-the-market sales | Common stock | Maximum
Sale of stock
Commission percentage									3.00%
Authorized value for shares issuance | $									$ 50,000,000.0		$ 50,000,000.0
Public offering
Sale of stock
Common stock that can be purchased with warrants (in shares)								333,333
Public offering | Common stock
Sale of stock
Issuance of common stock (in shares)							666,666
Common stock that can be purchased with one-half of warrant (in shares)								1
Share price (in dollars per share) | $ / shares								$ 34.00
Proceeds from issuance of common stock in public offering, net of offering costs | $								$ 21,100,000
2022 ATM | Subsequent Event [Member]
Sale of stock
Issuance of common stock (in shares)	873,564
Proceeds from issuance of common stock in public offering, net of offering costs | $	$ 1,900,000
2022 ATM | Common stock
Sale of stock
Issuance of common stock (in shares)										25,623
Proceeds from issuance of common stock in public offering, net of offering costs | $										$ 300,000
2022 ATM | Common stock | Maximum
Sale of stock
Commission percentage					3.00%
Authorized value for shares issuance | $					$ 50,000,000.0
Series A Preferred Stock
Sale of stock
Conversion of stock shares converted			2,425
Series A Preferred Stock | 2022 Preferred Stock Offering
Sale of stock
Issuance of common stock (in shares)				2,425
Series B Preferred Stock
Sale of stock
Conversion of stock shares converted						303,125
Series B Preferred Stock | Subsequent Event [Member]
Sale of stock
Issuance of common stock (in shares)		2,425
Series B Preferred Stock | 2022 Preferred Stock Offering
Sale of stock
Issuance of common stock (in shares)				2,425