Leases - Lessee Operating Lease Right of Use Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jul. 31, 2022	May 01, 2022	[1]	Aug. 01, 2021
Assets And Liabilities Lessee [Abstract]
Right of use assets	$ 14,556	$ 15,577		$ 11,447
Operating lease liability - current	3,126	3,219		2,727
Operating lease liability – noncurrent	$ 6,160	$ 7,062		$ 6,665

[1] Derived from audited financial statements.