Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 03, 2018	Feb. 25, 2017	Mar. 03, 2018	Feb. 25, 2017
Operating activities:
Net income (loss)	$ 527	$ (1,431)	$ 2,083	$ (6,803)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	752	703	2,219	2,020
Inventory provisions	183	189	470	298
Gain on sale of investments	(159)	(8)	(183)	(2)
Loss (gain) on disposal of assets	3		(188)
Share-based compensation expense	116	75	425	354
Deferred income taxes	124	121	186	(188)
Change in assets and liabilities:
Accounts receivable	(551)	(717)	(239)	3,217
Income tax receivable				(5)
Inventories	(598)	117	(5,232)	1,600
Prepaid expenses and other assets	43	80	(572)	(961)
Accounts payable	552	849	(446)	(2,372)
Accrued liabilities	1,116	(1,118)	1,325	(256)
Other	(137)	(125)	(140)	(107)
Net cash provided by (used in) operating activities	1,971	(1,265)	(292)	(3,205)
Investing activities:
Capital expenditures	(1,461)	(764)	(4,196)	(4,063)
Proceeds from sale of assets			276
Proceeds from maturity of investments	3,943		12,120	3,582
Purchases of investments			(3,943)	(2,136)
Proceeds from sales of available-for-sale securities	648	78	913	225
Purchases of available-for-sale securities		(78)	(265)	(225)
Other	(2)	(3)	(7)	(9)
Net cash provided by (used in) investing activities	3,128	(767)	4,898	(2,626)
Financing activities:
Proceeds from issuance of common stock	44	30	44	30
Cash dividends paid	(763)	(758)	(2,284)	(2,273)
Net cash used in financing activities	(719)	(728)	(2,240)	(2,243)
Effect of exchange rate changes on cash and cash equivalents	1,049	35	2,189	(994)
Increase (decrease) in cash and cash equivalents	5,429	(2,725)	4,555	(9,068)
Cash and cash equivalents at beginning of period	54,453	54,111	55,327	60,454
Cash and cash equivalents at end of period	$ 59,882	$ 51,386	$ 59,882	$ 51,386