Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	May 02, 2020	Apr. 27, 2019	Apr. 28, 2018
Operating Activities:
Net income	$ 129,972,000	$ 140,853,000	$ 149,774,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,234,000	15,439,000	13,226,000
Deferred income tax provision	11,000	3,351,000	676,000
Loss on disposal of property, net	206,000	12,000	149,000
Stock-based compensation	125,000	251,000	161,000
Amortization of operating right of use assets	13,351,000	0	0
Changes in assets and liabilities:
Trade receivables	(80,000)	(481,000)	(13,041,000)
Inventories	7,220,000	(9,782,000)	(7,565,000)
Prepaid and other assets	(5,633,000)	(2,806,000)	(5,437,000)
Accounts payable	8,168,000	(8,651,000)	16,753,000
Accrued and other liabilities	7,118,000	1,256,000	25,000
Net cash provided by operating activities	177,692,000	139,442,000	154,721,000
Investing Activities:
Additions to property, plant and equipment	(23,890,000)	(38,333,000)	(31,974,000)
Proceeds from sale of property, plant and equipment	9,000	18,000	63,000
Net cash used in investing activities	(23,881,000)	(38,315,000)	(31,911,000)
Financing Activities:
Dividends paid on common stock	0	(135,247,000)	(69,878,000)
Proceeds from stock options exercised	740,000	456,000	560,000
Repurchase of common stock	(6,233,000)	0	0
Net cash used in financing activities	(5,493,000)	(134,791,000)	(69,318,000)
Net Increase (Decrease) in Cash and Equivalents	148,318,000	(33,664,000)	53,492,000
Cash and Equivalents - Beginning of Year	156,200,000	189,864,000	136,372,000
Cash and Equivalents - End of Year	304,518,000	156,200,000	189,864,000
Other Cash Flow Information:
Interest paid	51,000	51,000	101,000
Income taxes paid	$ 29,364,000	$ 36,833,000	$ 56,737,000