CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at May. 30, 2021		29,333
Beginning balance at May. 30, 2021	$ 202,784	$ 29	$ 165,533	$ 38,580	$ (1,358)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under stock plans, net of shares withheld (in shares)		129
Issuance of stock under stock plans, net of shares withheld	0
Taxes paid by Company for employee stock plans	(428)		(428)
Stock-based compensation	620		620
Net loss	(9,477)			(9,477)
Other comprehensive income, net of tax	366				366
Ending balance (in shares) at Aug. 29, 2021		29,462
Ending balance at Aug. 29, 2021	193,865	$ 29	165,725	29,103	(992)
Beginning balance (in shares) at May. 30, 2021		29,333
Beginning balance at May. 30, 2021	202,784	$ 29	165,533	38,580	(1,358)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(47,918)
Other comprehensive income, net of tax	542
Ending balance (in shares) at Nov. 28, 2021		29,481
Ending balance at Nov. 28, 2021	156,202	$ 29	166,327	(9,338)	(816)
Beginning balance (in shares) at Aug. 29, 2021		29,462
Beginning balance at Aug. 29, 2021	193,865	$ 29	165,725	29,103	(992)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under stock plans, net of shares withheld (in shares)		19
Issuance of stock under stock plans, net of shares withheld	0
Taxes paid by Company for employee stock plans	(84)		(84)
Stock-based compensation	686		686
Net loss	(38,441)			(38,441)
Other comprehensive income, net of tax	176				176
Ending balance (in shares) at Nov. 28, 2021		29,481
Ending balance at Nov. 28, 2021	$ 156,202	$ 29	166,327	(9,338)	(816)
Beginning balance (in shares) at May. 29, 2022	29,513	29,513
Beginning balance at May. 29, 2022	$ 90,697	$ 30	167,352	(76,099)	(586)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under stock plans, net of shares withheld (in shares)		80
Issuance of stock under stock plans, net of shares withheld	0
Taxes paid by Company for employee stock plans	(67)		(67)
Stock-based compensation	785		785
Net loss	(11,351)			(11,351)
Other comprehensive income, net of tax	300				300
Ending balance (in shares) at Aug. 28, 2022		29,593
Ending balance at Aug. 28, 2022	$ 80,364	$ 30	168,070	(87,450)	(286)
Beginning balance (in shares) at May. 29, 2022	29,513	29,513
Beginning balance at May. 29, 2022	$ 90,697	$ 30	167,352	(76,099)	(586)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,800)
Other comprehensive income, net of tax	$ 586
Ending balance (in shares) at Nov. 27, 2022	30,297	30,297
Ending balance at Nov. 27, 2022	$ 74,167	$ 30	174,036	(99,899)	0
Beginning balance (in shares) at Aug. 28, 2022		29,593
Beginning balance at Aug. 28, 2022	80,364	$ 30	168,070	(87,450)	(286)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock under stock plans, net of shares withheld (in shares)		76
Issuance of stock under stock plans, net of shares withheld	0
Taxes paid by Company for employee stock plans	(142)		(142)
Stock-based compensation	1,108		1,108
Net loss	(12,449)			(12,449)
Other comprehensive income, net of tax	286				286
Issuance of shares to Wynnefield Capital, Inc. (in shares)		628
Issuance of shares to Wynnefield Capital, Inc.	$ 5,000		5,000
Ending balance (in shares) at Nov. 27, 2022	30,297	30,297
Ending balance at Nov. 27, 2022	$ 74,167	$ 30	$ 174,036	$ (99,899)	$ 0