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Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Sep. 01, 2012
Sep. 03, 2011
Operating activities:    
Net income $ 647 $ 3,631
Adjustments to reconcile net income to cash provided by (used in) operating activities:    
Depreciation and amortization 299 284
Gain on sale of investments (20) (10)
Gain on disposal of assets (4) (70)
Stock compensation expense 124 155
Deferred income taxes (1) 5,329
Accounts receivable (646) (225)
Income tax receivable 155 (8,270)
Inventories (550) (3,614)
Prepaid expenses and other assets (622) 2,795
Accounts payable (1,430) (2,581)
Accrued liabilities (1,006) (33,636)
Long-term income tax liabilities (321) (11,411)
Other 42 4
Net cash used in operating activities (3,333) (47,619)
Investing activities:    
Capital expenditures (79) (74)
Proceeds from sale of assets 4 16
Proceeds from maturity of investments 57,747 137,534
Purchases of investments (51,725) (216,285)
Proceeds from sales of available-for-sale securities 54 63
Purchases of available-for-sale securities (54) (63)
Other 1 48
Net cash provided by (used in) investing activities 5,948 (78,761)
Financing activities:    
Repurchase of common stock (5,552) (7,691)
Proceeds from issuance of common stock 11 87
Cash dividends paid   (846)
Other   7
Net cash used in financing activities (5,541) (8,443)
Effect of exchange rate changes on cash and cash equivalents 271 1,084
Decrease in cash and cash equivalents (2,655) (133,739)
Cash and cash equivalents at beginning of period 43,893 170,975
Cash and cash equivalents at end of period $ 41,238 $ 37,236