Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 30, 2014	Aug. 31, 2013
Operating activities:
Net income (loss)	$ (83)	$ 1,968
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Depreciation and amortization	366	248
Gain on sale of investments	(3)	(7)
Share-based compensation expense	120	114
Deferred income taxes	(79)	(59)
Change in assets and liabilities, net of effect of acquired businesses:
Accounts receivable	(372)	(1,218)
Income tax receivable	2,308	2,751
Inventories	(2,110)	(450)
Prepaid expenses and other assets	135	156
Accounts payable	101	(2,547)
Accrued liabilities	(662)	(1,890)
Long-term income tax liabilities	0	(242)
Other	(49)	(9)
Net cash used in operating activities	(328)	(1,185)
Investing activities:
Cash consideration paid for acquired businesses	0	(973)
Capital expenditures	(834)	(441)
Proceeds from maturity of investments	30,482	40,488
Purchases of investments	(32,362)	(40,094)
Proceeds from sales of available-for-sale securities	37	56
Purchases of available-for-sale securities	(37)	(56)
Other	(28)	69
Net cash used in investing activities	(2,742)	(951)
Financing activities:
Repurchase of common stock	(488)	(6,700)
Proceeds from issuance of common stock	158	71
Cash dividends paid	(828)	(857)
Other	1	1
Net cash used in financing activities	(1,157)	(7,485)
Effect of exchange rate changes on cash and cash equivalents	(441)	149
Decrease in cash and cash equivalents	(4,668)	(9,472)
Cash and cash equivalents at beginning of period	102,752	102,002
Cash and cash equivalents at end of period	$ 98,084	$ 92,530