Stockholders' Equity - Schedule of Common Stock Warrant Activity (Detail) - $ / shares	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Equity [Abstract]
Warrant Shares of Common Stock, Outstanding at beginning	8,937,651	4,499,603
Warrant Shares of Common Stock, Granted	2,166,667	8,000,000
Warrant Shares of Common Stock, Exercised		(78,431)
Warrant Shares of Common Stock, Expired		(3,483,521)
Warrant Shares of Common Stock, Exchanged	(8,000,000)
Warrant Shares of Common Stock, Outstanding at ending	3,104,318	8,937,651
Weighted Average Exercise Price, Outstanding at beginning	$ 2.31	$ 3.42
Weighted Average Exercise Price, Granted	1.80	2.00
Weighted Average Exercise Price, Exercised		3.00
Weighted Average Exercise Price, Expired		3.00
Weighted Average Exercise Price, Exchanged	2.00
Weighted Average Exercise Price, Outstanding at ending	$ 2.77	$ 2.31