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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Apr. 29, 2018
Apr. 30, 2017
May 01, 2016
cash flows from operating activities:      
Net income $ 20,877 $ 22,334 $ 16,935
adjustments to reconcile net income to net cash provided by operating activities:      
depreciation 7,672 7,085 6,671
amortization of other assets 351 244 170
stock-based compensation 2,212 3,358 2,742
deferred income taxes (2,482) 4,667 4,192
gain on sale of equipment   (131) (35)
loss from investment in unconsolidated joint venture 266 23  
realized loss on sale of short-term investments   12 127
foreign currency exchange losses (gains) 66 78 (40)
changes in assets and liabilities, net of effects of acquisition of assets:      
accounts receivable (299) (1,555) 4,476
inventories (24) (5,437) (4,407)
other current assets 226 (495) (206)
other assets (81) 30 (46)
accounts payable-trade (4,028) 5,828 (3,785)
accrued expenses and deferred compensation (1,562) 992 1,498
deferred revenue (94)    
income taxes 4,373 (2,966) 91
net cash provided by operating activities 27,473 34,067 28,383
cash flows from investing activities:      
capital expenditures (8,005) (11,858) (11,475)
net cash paid for acquisition of assets (4,541)    
investment in unconsolidated joint venture (661) (1,129)  
purchase of short-term investments (49) (44) (104)
proceeds from the sale of short-term investments   2,000 5,612
purchase of long-term investments (held-to-maturity)   (31,020)  
purchase of long-term investments (rabbi trust) (1,902) (1,351) (1,649)
proceeds from the sale of long-term investments (rabbi trust) 57    
payments on life insurance policies (18) (18) (18)
proceeds from the sale of equipment 6 141 233
net cash used in investing activities (15,113) (43,279) (7,401)
cash flows from financing activities:      
proceeds from lines of credit 19,000 9,000 7,000
payments on lines of credit (19,000) (9,000) (7,000)
payments on vendor-financed capital expenditures (3,750) (1,050)  
payments on long-term debt     (2,200)
debt issuance costs   (2) (134)
repurchases of common stock     (2,397)
dividends paid (6,843) (6,280) (8,140)
common stock surrendered for withholding taxes payable (1,530) (429) (747)
proceeds from common stock issued 111 37 200
net cash used in financing activities (12,012) (7,724) (13,418)
effect of exchange rate changes on cash and cash equivalents 85 (56) 498
increase (decrease) in cash and cash equivalents 433 (16,992) 8,062
cash and cash equivalents at beginning of year 20,795 37,787 29,725
cash and cash equivalents at end of year $ 21,228 $ 20,795 $ 37,787