Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 28, 2021	Aug. 29, 2020
Operating activities:
Net income (loss)	$ 2,635	$ (1,147)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	829	873
Inventory provisions	83	237
Share-based compensation expense	219	201
Deferred income taxes	35	2
Change in assets and liabilities:
Accounts receivable	(5,008)	(854)
Inventories	(4,957)	(1,621)
Prepaid expenses and other assets	(62)	109
Accounts payable	607	(2,734)
Accrued liabilities	480	1,779
Other	266	(202)
Net cash used in operating activities	(4,873)	(3,357)
Investing activities:
Capital expenditures	(837)	(718)
Proceeds from maturity of investments		16,000
Purchases of investments		(9,000)
Net cash (used in) provided by investing activities	(837)	6,282
Financing activities:
Proceeds from issuance of common stock	52
Cash dividends paid	(786)	(780)
Payment of financing lease principal	(45)	(45)
Net cash used in financing activities	(779)	(825)
Effect of exchange rate changes on cash and cash equivalents	(409)	860
(Decrease) increase in cash and cash equivalents	(6,898)	2,960
Cash and cash equivalents at beginning of period	43,316	30,535
Cash and cash equivalents at end of period	$ 36,418	$ 33,495