Income Taxes - Schedule of Components of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Current - Federal	$ 100	$ (126)
Deferred - Federal	(1,061)	(1,128)
Income tax (provision) benefit	$ (961)	$ (1,254)