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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Jul. 30, 2016
Aug. 01, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income $ 5,539 $ 3,776
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation 4,193 4,020
Amortization 398 35
Amortization of premium/discount on marketable securities 9 33
Loss (gain) on sale of property, equipment and other assets 31 (62)
Share-based compensation 709 751
Provision for doubtful accounts 7 160
Deferred income taxes, net 3 (21)
Change in operating assets and liabilities (4,291) (18,763)
Net cash provided by (used in) operating activities 6,598 (10,071)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (2,157) (7,232)
Proceeds from sale of property, equipment and other assets 64 66
Purchases of marketable securities (2,394) (9,506)
Proceeds from sales or maturities of marketable securities 6,856 9,497
Acquisitions, net of cash acquired 0 (614)
Net cash provided by (used in) investing activities 2,369 (7,789)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Payments on notes payable (4) (9)
Proceeds from exercise of stock options 0 562
Principal payments on long-term obligations (896) (8)
Dividends paid (4,409) (4,375)
Payments for common shares repurchased (1,825) 0
Net cash used in financing activities (7,134) (3,830)
EFFECT OF EXCHANGE RATE CHANGES ON CASH (383) (325)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 1,450 (22,015)
CASH AND CASH EQUIVALENTS:    
Beginning of period 28,328 57,284
End of period 29,778 35,269
Cash payments for:    
Interest 104 126
Income taxes, net of refunds 50 3,215
Supplemental schedule of non-cash investing and financing activities:    
Demonstration equipment transferred to inventory 73 4
Purchase of property and equipment included in accounts payable $ 209 $ 883