Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 28, 2018	Jul. 29, 2017
Operating Activities:
Net income	$ 48,830	$ 38,272
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	3,955	3,531
Deferred income tax provision	1,588	108
Loss on disposal of property, net	1	6
Stock-based compensation	40	41
Changes in assets and liabilities:
Trade receivables	(10,306)	(14,819)
Inventories	(6,894)	(3,971)
Prepaid and other assets	769	(656)
Accounts payable	7,952	(3,761)
Accrued and other liabilities	13,345	24,791
Net cash provided by operating activities	59,280	43,542
Investing Activities:
Additions to property, plant and equipment	(6,226)	(4,054)
Proceeds from sale of property, plant and equipment	1	9
Net cash used in investing activities	(6,225)	(4,045)
Financing Activities:
Proceeds from stock options exercised	123	46
Net cash provided by financing activities	123	46
Net Increase in Cash and Equivalents	53,178	39,543
Cash and Equivalents - Beginning of Period	189,864	136,372
Cash and Equivalents - End of Period	243,042	175,915
Other Cash Flow Information:
Interest paid	13	25
Income taxes paid	$ 2	$ 648