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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
May 01, 2016
May 03, 2015
Apr. 27, 2014
cash flows from operating activities:      
net income $ 16,935 $ 15,071 $ 17,447
adjustments to reconcile net income to net cash provided by operating activities:      
depreciation 6,671 5,773 5,312
amortization of other assets 170 187 169
stock-based compensation 2,742 786 710
excess tax benefit related to stock-based compensation (841) (109) (143)
deferred income taxes 4,192 3,179 (1,727)
gain on sale of equipment (35) (78) (283)
realized loss on sale of short-term investments 127    
foreign currency exchange (gains) losses (40) (84) 626
changes in assets and liabilities, net of effects of acquisition of assets:      
accounts receivable 4,476 (1,636) (3,857)
inventories (4,407) (1,883) (2,200)
other current assets (206) (151) (270)
other assets (46) (117) (72)
accounts payable-trade (3,785) 1,964 4,131
accrued expenses and deferred compensation 751 3,372 34
income taxes 91 (163) 342
net cash provided by operating activities 26,795 26,111 20,219
cash flows from investing activities:      
capital expenditures (11,475) (10,461) (5,258)
net cash paid for acquisition of assets (notes 2 and 13)     (2,640)
purchase of short-term investments (104) (5,355) (1,945)
proceeds from the sale of short-term investments 5,612 1,628 810
purchase of long-term investments (1,649) (1,650) (765)
proceeds from life insurance policies   320  
payments on life insurance policies (18) (18) (30)
proceeds from the sale of buildings and equipment 233 727 407
net cash used in investing activities (7,401) (14,809) (9,421)
cash flows from financing activities:      
proceeds from lines of credit 7,000    
payments on lines of credit (7,000) (538)  
payments on long-term debt (2,200) (2,200) (2,200)
debt issuance costs (134)   (83)
repurchases of common stock (2,397) (745)  
dividends paid (8,140) (7,579) (2,204)
proceeds from common stock issued 200 94 194
excess tax benefit related to stock options exercised 841 109 143
net cash used in financing activities (11,830) (10,859) (4,150)
effect of exchange rate changes on cash and cash equivalents 498 (21) (875)
increase in cash and cash equivalents 8,062 422 5,773
cash and cash equivalents at beginning of year 29,725 29,303 23,530
cash and cash equivalents at end of year $ 37,787 $ 29,725 $ 29,303