Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands		May 02, 2021	May 03, 2020	Apr. 28, 2019	Apr. 29, 2018
deferred tax assets:
accounts receivable		$ 362	$ 263
inventories		2,019	2,280
compensation		3,284	1,970
liabilities and other		23	166
intangible assets and goodwill		690	856
property, plant, and equipment	[1]	202	185
operating lease liability		836	671
foreign income tax credits - U.S.		783	783
loss carryforwards – U.S.		7,533	4,137
valuation allowance - U.S.		(11,674)	(3,148)	$ (748)	$ (5,204)
total deferred tax assets		4,058	8,163
deferred tax liabilities:
undistributed earnings on foreign subsidiaries		(3,521)	(3,409)
unrecognized tax benefits – U.S.		(380)
property, plant and equipment	[2]	(3,968)	(5,008)
right of use assets		(855)	(690)
other		(119)	(81)
total deferred tax liabilities		(8,843)	(9,188)
Net deferred liabilities		$ (4,785)	$ (1,025)

[1] Pertains to the company’s operations located in China.

[2] Pertains to the company’s operations located in the U.S. and Canada.