Income Taxes - Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 01, 2022	May 02, 2021	May 03, 2020
current
federal		$ (17)
state	$ 2	3	$ 7
foreign	2,156	4,151	4,248
uncertain income tax positions	37	(204)	725
current income tax expense	2,195	3,933	4,980
deferred
federal	1,121	(1,933)	(1,875)
state	47	(80)	(103)
2017 Tax Cuts and Jobs Act		(3,674)
undistributed earnings – foreign subsidiaries	76	112	(114)
U.S. Federal & State carryforwards and credits	(971)	451	974
uncertain income tax positions	(380)	380	(380)
foreign	615	(22)	(247)
valuation allowance	183	8,526	119
deferred income tax expense	691	3,760	(1,626)
income tax expense	$ 2,886	$ 7,693	$ 3,354