Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 26, 2022	Feb. 27, 2021
Operating activities:
Net income (loss)	$ 2,887	$ 228	$ 9,644	$ (230)
Adjustments to reconcile net income (loss) to cash (used in) provided by operating activities:
Depreciation and amortization	872	849	2,560	2,595
Inventory provisions	88	265	228	717
Share-based compensation expense	142	150	514	529
Loss (gain) on disposal of assets		(6)	2	(6)
Deferred income taxes	26	3	38	(50)
Change in assets and liabilities:
Accounts receivable	(4,209)	(837)	(7,355)	(1,004)
Inventories	(3,113)	133	(12,295)	(875)
Prepaid expenses and other assets	(2)	428	(1,058)	156
Accounts payable	1,902	496	4,204	(2,027)
Accrued liabilities	563	873	2,075	4,285
Other	(370)	216	(13)	(222)
Net cash (used in) provided by operating activities	(1,214)	2,798	(1,456)	3,868
Investing activities:
Capital expenditures	(554)	(555)	(2,161)	(1,835)
Proceeds from maturity of investments				16,000
Purchases of investments				(9,000)
Net cash (used in) provided by investing activities	(554)	(555)	(2,161)	5,165
Financing activities:
Proceeds from issuance of common stock	1,906		2,630
Cash dividends paid	(806)	(780)	(2,384)	(2,340)
Payment of financing lease principal	(45)	(45)	(136)	(136)
Net cash provided by (used in) financing activities	1,055	(825)	110	(2,476)
Effect of exchange rate changes on cash and cash equivalents	195	(34)	(662)	1,315
(Decrease) increase in cash and cash equivalents	(518)	1,384	(4,169)	7,872
Cash and cash equivalents at beginning of period	39,665	37,023	43,316	30,535
Cash and cash equivalents at end of period	$ 39,147	$ 38,407	$ 39,147	$ 38,407