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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2016
May 02, 2015
Apr. 26, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income $ 2,061 $ 20,882 $ 22,206
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation 16,561 14,764 14,137
Amortization 295 204 364
Amortization of premium/discount on marketable securities 87 168 221
Gain on sale of property and equipment (71) (1,207) (72)
Share-based compensation 2,958 3,038 2,897
Excess tax benefits from share-based compensation (3) (38) (119)
Gain on sale of equity investee (119) 0 0
Provision for doubtful accounts 481 (222) (190)
Deferred income taxes, net 911 2,146 1,543
Change in operating assets and liabilities (9,886) 13,433 (4,788)
Net cash provided by operating activities 13,275 53,168 36,199
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of property and equipment (17,056) (21,837) (13,519)
Proceeds from sales of property, equipment and other assets 152 4,037 238
Purchases of marketable securities (21,286) (15,653) (15,550)
Proceeds from sale of equity method investments 377 0 0
Proceeds from sales or maturities of marketable securities 21,862 15,532 13,953
Acquisitions, net of cash acquired (7,867) (6,306) (1,480)
Net cash used in investing activities (23,818) (24,227) (16,358)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Payments on notes payable (38) (81) 0
Proceeds from exercise of stock options 610 2,513 4,954
Excess tax benefits from share-based compensation 3 38 119
Principal payments on long-term obligations (467) (1,163) (3,704)
Dividends paid (17,556) (17,377) (16,690)
Net cash used in financing activities (17,448) (16,070) (15,321)
EFFECT OF EXCHANGE RATE CHANGES ON CASH (965) (641) (94)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS (28,956) 12,230 4,426
CASH AND CASH EQUIVALENTS:      
Beginning of period 57,284 45,054 40,628
End of period $ 28,328 $ 57,284 $ 45,054