Leases - Additional Information (Detail) - USD ($)	Jun. 30, 2022	Mar. 31, 2022
Lessee Lease Description [Line Items]
Operating lease, liabilities current	$ 189,000	$ 211,000
Finance lease, liabilities current	1,000	1,000
Operating lease, liabilities non-current	167,000	201,000
Finance lease, liabilities, non-current	1,000	2,000
Operating right-of-use assets	350,000	403,000
Finance lease right-of-use assets	$ 2,000	$ 2,000
Minimum
Lessee Lease Description [Line Items]
Non-cancellable lease terms	7 months
Maximum
Lessee Lease Description [Line Items]
Non-cancellable lease terms	3 years