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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Apr. 29, 2012
May 01, 2011
May 02, 2010
cash flows from operating activities:      
net income $ 13,296 $ 16,164 $ 13,188
adjustments to reconcile net income to net cash provided by operating activities:      
depreciation 4,865 4,372 4,010
amortization of other assets 243 442 548
stock-based compensation 349 360 834
excess tax benefit related to stock options exercised (64) (339) (429)
deferred income taxes (1,682) (3,390) (148)
gain on sale of equipment (168) (22) (65)
restructuring expenses, net of gain on sale of related assets   28 (170)
foreign currency exchange (gains) losses (215) (115) 688
changes in assets and liabilities, net of effects of acquisition of assets:      
accounts receivable (4,792) (199) (1,684)
inventories (7,497) (2,579) (2,020)
other current assets 395 (621) (418)
other assets (61) (3) (67)
accounts payable-trade 5,426 2,110 5,157
accrued expenses 1,710 (2,286) 2,853
accrued restructuring (4) (280) (529)
income taxes 202 1,179 (171)
net cash provided by operating activities 12,003 14,821 21,577
cash flows from investing activities:      
capital expenditures (5,890) (6,352) (7,431)
purchase of short-term investments (4,797) (6,713) (3,023)
proceeds from the sale of short-term investments 6,707 2,037  
proceeds from the sale of buildings and equipment 299 79 583
net cash used in investing activities (3,681) (10,949) (9,871)
cash flows from financing activities:      
proceeds from lines of credit 6,323    
payments on lines of credit (5,500)    
payments on vendor-financed capital expenditures   (377) (985)
payments on a capital lease obligation     (626)
payments on long-term debt (2,404) (179) (4,789)
debt issuance costs (37) (27) (15)
repurchases of common stock (5,384)    
proceeds from common stock issued 318 769 673
excess tax benefit related to stock options exercised 64 339 429
net cash (used in) provided by financing activities (6,620) 525 (5,313)
effect of exchange rate changes on cash and cash equivalents 140 489 105
increase in cash and cash equivalents 1,842 4,886 6,498
cash and cash equivalents at beginning of year 23,181 18,295 11,797
cash and cash equivalents at end of year $ 25,023 $ 23,181 $ 18,295