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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
 6 Months Ended
Oct. 29, 2017
Oct. 30, 2016
Cash flows from operating activities:    
Net income $ 8,959 $ 9,789
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 3,713 3,511
Amortization of other assets 166 80
Stock-based compensation 1,558 1,657
Deferred income taxes 976 2,121
Realized loss on sale of short-term investments (Available for Sale)   12
Loss on sale of equipment   9
Loss from investment in unconsolidated joint venture 193  
Foreign currency exchange loss (gain) 42 (53)
Changes in assets and liabilities:    
Accounts receivable 561 4,142
Inventories 1,597 219
Other current assets 723 751
Other assets (35)  
Accounts payable - trade (5,074) (3,274)
Accrued expenses and deferred compensation (3,607) (2,469)
Income taxes 406 554
Net cash provided by operating activities 10,178 17,049
Cash flows from investing activities:    
Capital expenditures (4,978) (6,308)
Investment in unconsolidated joint venture (609)  
Proceeds from the sale of equipment 6  
Proceeds from the sale of short-term investments - (Available for Sale)   2,000
Purchase of short-term investments - (Available for Sale) (24) (23)
Purchase of long-term investments (Held-To-Maturity)   (31,050)
Proceeds from the sale of long-term investments (Rabbi Trust) 54  
Purchase of long-term investments (Rabbi Trust) (1,457) (929)
Net cash used in investing activities (7,008) (36,310)
Cash flows from financing activities:    
Proceeds from line of credit 10,000 7,000
Payments on line of credit (10,000) (7,000)
Payments on vendor-financed capital expenditures (2,500)  
Dividends paid (4,603) (4,307)
Common stock surrendered for withholding taxes payable (1,147) (280)
Payments on debt issuance costs   (2)
Proceeds from common stock issued 5 11
Net cash used in financing activities (8,245) (4,578)
Effect of exchange rate changes on cash and cash equivalents 19 (38)
Decrease in cash and cash equivalents (5,056) (23,877)
Cash and cash equivalents at beginning of period 20,795 [1] 37,787
Cash and cash equivalents at end of period $ 15,739 $ 13,910
[1] Derived from audited financial statements.