Subsequent Event (Details)							1 Months Ended				3 Months Ended		12 Months Ended
	May 09, 2022 USD ($) shares	Apr. 27, 2022 USD ($)	Apr. 26, 2022 shares	Apr. 25, 2022 $ / shares shares	Apr. 04, 2022 shares	Mar. 14, 2022 USD ($) $ / shares shares	Oct. 31, 2022 shares	Apr. 30, 2022 shares	Oct. 31, 2021 USD ($) shares	Mar. 31, 2021 shares	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2021 USD ($) shares
Subsequent Event
Common stock that can be purchased with warrants (in shares)									333,333		1,242,813
Stock split conversion ratio			0.025
Common stock, outstanding (in shares)											3,365,422		3,034,901
2022 Preferred Stock Offering
Subsequent Event
Common stock that can be purchased with warrants (in shares)						30,313
Warrants and Rights Outstanding, Term						5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares						$ 10.00
Duration From Offering To Anniversary Of Closing				180 days
Proceeds from issuance of common stock, net of offering costs | $						$ 4,100,000
2022 Preferred Stock Offering | Series A Warrants
Subsequent Event
Common stock that can be purchased with warrants (in shares)				212,188		606,250
Warrants and Rights Outstanding, Term						5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares						$ 10.40
2022 Preferred Stock Offering | Series B Warrants
Subsequent Event
Common stock that can be purchased with warrants (in shares)						606,250
Warrants and Rights Outstanding, Term						1 year 6 months
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares						$ 10.40
2022 Preferred Stock Offering | Series A Preferred Stock
Subsequent Event
Issuance of common stock (in shares)						2,425
2022 Preferred Stock Offering | Series B Preferred Stock
Subsequent Event
Issuance of common stock (in shares)						2,425
At-the-market sales
Subsequent Event
Stock Issued During Period, Value, New Issues | $											$ 348,000	$ 960,000
At-the-market sales | Common stock
Subsequent Event
Issuance of common stock (in shares)										172,879	25,623	13,023
Proceeds from issuance of common stock, net of offering costs | $													$ 9,300,000
Public offering
Subsequent Event
Common stock that can be purchased with warrants (in shares)									333,333
Public offering | Common stock
Subsequent Event
Issuance of common stock (in shares)							666,666
Proceeds from issuance of common stock, net of offering costs | $									$ 21,100,000
2022 ATM | Common stock
Subsequent Event
Issuance of common stock (in shares)											25,623
Proceeds from issuance of common stock, net of offering costs | $											$ 300,000
Subsequent event
Subsequent Event
Stock split conversion ratio								0.025
Common stock, outstanding (in shares)			3,668,546	146,741,862
Fractional shares issued upon reverse stock split								0
Subsequent event | Common stock
Subsequent Event
Conversion of convertible preferred stock (in shares)					303,125
Subsequent event | Series B Preferred Stock
Subsequent Event
Issuance of common stock (in shares)					2,425
Subsequent event | 2022 Preferred Stock Offering | Series A Warrants
Subsequent Event
Warrant Exercisable Term				5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 10.40
Subsequent event | 2022 ATM
Subsequent Event
Issuance of common stock (in shares)	873,564
Proceeds from issuance of common stock, net of offering costs | $	$ 1,900,000
Subsequent event | H.C. Wainwright & Co., LLC, Sales Agent [Member]
Subsequent Event
Commission Percentage on Stock Offering		3.00%
Subsequent event | H.C. Wainwright & Co., LLC, Sales Agent [Member] | Common stock
Subsequent Event
Stock Issued During Period, Value, New Issues | $		$ 12,841,000