Segment and Geographic Information - Schedule of Operating Results by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	May 30, 2026	May 31, 2025	Jun. 01, 2024
Segment Reporting Information [Line Items]
Sales	$ 228,564	$ 208,909	$ 196,460
Cost of sales	157,217	144,109	136,494
Gross profit	71,347	64,800	59,966
Selling, general and administrative expenses	65,717	62,173	59,548
Loss on disposal of property, plant and equipment	13	16	70
(Gain) loss on disposal of healthcare assets and related charges	(847)	5,074	0
Operating income (loss)	6,464	(2,463)	348
Interest income	544	392	284
Foreign exchange loss	(452)	496	(436)
Other, net	922	44	(39)
Income (loss) before income taxes	7,478	(1,531)	157
PMT | Operating Segments
Segment Reporting Information [Line Items]
Sales	160,490	147,045	140,783
Cost of sales	110,398	102,164	98,397
Gross profit	50,092	44,881	42,386
GES | Operating Segments
Segment Reporting Information [Line Items]
Sales	30,814	28,719	23,233
Cost of sales	21,487	19,689	16,626
Gross profit	9,327	9,030	6,607
Canvys | Operating Segments
Segment Reporting Information [Line Items]
Sales	37,260	33,145	32,444
Cost of sales	25,332	22,256	21,471
Gross profit	$ 11,928	$ 10,889	$ 10,973