Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended			6 Months Ended			9 Months Ended			12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 31, 2021	Oct. 28, 2023	Oct. 29, 2022	Oct. 30, 2021	Jan. 27, 2024	Jan. 28, 2023	Jan. 29, 2022	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022
Operating Activities:
Net income										$ 176,732	$ 142,164	$ 158,512
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization										20,161	20,041	18,544
Deferred income taxes										907	(821)	5,326
Loss (gain) on disposal of property, plant and equipment, net										12	141	(7)
Stock-based compensation expense										881	677	695
Non-cash operating lease expense										14,039	13,240	13,258
Changes in assets and liabilities:
Trade receivables										2,081	(11,326)	(7,150)
Inventories										8,975	9,740	(31,838)
Prepaid and other assets	$ 1,559	$ 11,709	$ 1,400	$ (6,417)	$ 2,417	$ (1,962)	$ (11,786)	$ 4,096	$ (7,219)	(8,151)	8,275	(13,797)
Accounts payable										(6,823)	(10,193)	6,545
Accrued and other liabilities	9,478	(397)	11,003	1,612	(796)	(7,073)	1,115	3,007	(5,235)	3,885	2,941	(3,731)
Operating lease liabilities	(3,329)	(3,158)	(3,116)	(8,291)	(6,535)	(6,687)	(11,276)	(9,906)	(10,077)	(14,792)	(13,214)	(13,224)
Net cash provided by operating activities	70,143	40,617	56,658	102,059	82,238	85,964	137,465	112,253	92,552	197,907	161,665	133,133
Investing Activities:
Purchases to property, plant and equipment										(30,300)	(21,979)	(29,015)
Proceeds from sale of property, plant and equipment										52	27	11
Net cash used in investing activities										(30,248)	(21,952)	(29,004)
Financing Activities:
Borrowing under Loan Facility										0	0	50,000
Repayments under Loan Facility										0	(30,000)	(20,000)
Dividends paid on common stock										0	0	(280,003)
Proceeds from exercises of stock options										1,314	311	335
Net cash provided by (used in) financing activities										1,314	(29,689)	(249,668)
Net Increase (Decrease) in Cash and Equivalents										168,973	110,024	(145,539)
Cash and Cash Equivalents - Beginning of Year	158,074	48,050	193,589	158,074	48,050	193,589	158,074	48,050	193,589	158,074	48,050	193,589
Cash and Cash Equivalents - End of Year										327,047	158,074	48,050
Supplemental Cash Flow Information:
Interest paid										228	315	371
Income taxes paid										55,971	37,831	51,958
Non-Cash Activities:
Right-of- use assets obtained in exchange for lease liabilities	$ 3,589	$ 12,468	$ 924	$ 11,877	$ 16,132	$ 1,594	$ 27,905	$ 19,539	$ 5,827	$ 28,039	$ 23,495	$ 6,054