Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 26, 2016	Nov. 28, 2015	Nov. 26, 2016	Nov. 28, 2015
Operating activities:
Net loss	$ (2,522)	$ (2,286)	$ (5,372)	$ (3,685)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	602	797	1,317	1,282
(Gain) loss on sale of investments	8	(8)	6	(19)
Gain on disposal of assets		(243)		(244)
Share-based compensation expense	176	225	279	315
Deferred income taxes	(151)	254	(309)	255
Change in assets and liabilities, net of effect of acquired business:
Accounts receivable	379	2,554	3,934	29
Income tax receivable	8	116	(5)	664
Inventories	1,181	(2,879)	1,592	(3,472)
Prepaid expenses and other assets	(1,082)	137	(1,041)	(444)
Accounts payable	(883)	(469)	(3,221)	(1,990)
Accrued liabilities	2,006	(396)	862	(1,200)
Non-current deferred income tax liabilities		(228)
Long-term liabilities-accrued pension				(465)
Other	13	96	18	131
Net cash used in operating activities	(265)	(2,330)	(1,940)	(8,843)
Investing activities:
Cash consideration paid for acquired business				(12,209)
Capital expenditures	(1,235)	(792)	(3,299)	(1,776)
Proceeds from sale of assets		402		402
Proceeds from maturity of investments	2,117	7,234	3,582	25,584
Purchases of investments	(2,136)	(2,151)	(2,136)	(2,151)
Proceeds from sales of available-for-sale securities	59	44	147	144
Purchases of available-for-sale securities	(59)	(44)	(147)	(144)
Other	(3)	(28)	(6)	32
Net cash (used in) provided by investing activities	(1,257)	4,665	(1,859)	9,882
Financing activities:
Repurchase of common stock		(1,707)		(5,015)
Proceeds from issuance of common stock		121		121
Cash dividends paid	(757)	(757)	(1,515)	(1,563)
Other				(4)
Net cash used in financing activities	(757)	(2,343)	(1,515)	(6,461)
Effect of exchange rate changes on cash and cash equivalents	(1,098)	(555)	(1,029)	(1,250)
Decrease in cash and cash equivalents	(3,377)	(563)	(6,343)	(6,672)
Cash and cash equivalents at beginning of period	57,488	68,426	60,454	74,535
Cash and cash equivalents at end of period	$ 54,111	$ 67,863	$ 54,111	$ 67,863