Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 01, 2018	Dec. 02, 2017	Dec. 01, 2018	Dec. 02, 2017
Operating activities:
Net (loss) income	$ (304)	$ 1,668	$ 127	$ 1,556
Adjustments to reconcile net (loss) income to cash provided by (used in) operating activities:
Depreciation and amortization	792	735	1,556	1,467
Inventory provisions	150	125	365	287
Loss (gain) on sale of investments		1		(24)
Gain on disposal of assets				(191)
Share-based compensation expense	230	208	395	309
Deferred income taxes	97	66	155	62
Change in assets and liabilities:
Accounts receivable	100	(1,735)	(98)	312
Inventories	(1,908)	(2,021)	(1,831)	(4,634)
Prepaid expenses and other assets	(319)	(357)	(282)	(615)
Accounts payable	1,538	1,757	(3,881)	(998)
Accrued liabilities	344	(517)	571	209
Other	161	264	174	(3)
Net cash provided by (used in) operating activities	881	194	(2,749)	(2,263)
Investing activities:
Capital expenditures	(1,120)	(1,720)	(2,192)	(2,735)
Proceeds from sale of assets				276
Proceeds from maturity of investments		4,177		8,177
Purchases of investments	(3,000)	(3,943)	(5,300)	(3,943)
Proceeds from sales of available-for-sale securities		114		265
Purchases of available-for-sale securities		(114)		(265)
Other		(2)		(5)
Net cash (used in) provided by investing activities	(4,120)	(1,488)	(7,492)	1,770
Financing activities:
Proceeds from issuance of common stock	11		203
Cash dividends paid	(770)	(763)	(1,534)	(1,521)
Net cash used in financing activities	(759)	(763)	(1,331)	(1,521)
Effect of exchange rate changes on cash and cash equivalents	(621)	81	(1,034)	1,140
Decrease in cash and cash equivalents	(4,619)	(1,976)	(12,606)	(874)
Cash and cash equivalents at beginning of period	52,478	56,429	60,465	55,327
Cash and cash equivalents at end of period	$ 47,859	$ 54,453	$ 47,859	$ 54,453