Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2021	Aug. 01, 2020
Operating Activities:
Net income	$ 53,816	$ 51,164
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	4,679	4,627
Deferred income taxes	(401)	(151)
Loss on disposal of property, net	6	2
Stock-based compensation	171	41
Amortization of operating right of use assets	3,562	3,399
Changes in assets and liabilities:
Trade receivables	(12,174)	(18,828)
Inventories	1,546	407
Operating lease right of use assets	(924)	(160)
Prepaid and other assets	(106)	(163)
Accounts payable	(3,834)	98
Accrued and other liabilities	12,509	14,056
Operating lease liabilities	(2,192)	(2,963)
Net cash provided by operating activities	56,658	51,529
Investing Activities:
Additions to property, plant and equipment	(4,770)	(3,668)
Proceeds from sale of property, plant and equipment	0	1
Net cash used in investing activities	(4,770)	(3,667)
Financing Activities:
Proceeds from stock options exercised	58	139
Net cash provided by financing activities	58	139
Net Increase in Cash and Equivalents	51,946	48,001
Cash and Equivalents - Beginning of Period	193,589	304,518
Cash and Equivalents - End of Period	245,535	352,519
Other Cash Flow Information:
Interest paid	61	13
Income taxes paid	$ 222	$ 1,240