Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Series C Preferred Stock [Member] Preferred Stock [Member]	Series C Preferred Stock [Member] Treasury Stock, Preferred [Member]
Balance (in shares)		101,727,000					150,000	150,000
Balance (in shares) at Apr. 30, 2023		101,727,000					150,000	150,000
Balance at Apr. 30, 2023		$ 1,017	$ 40,393	$ 358,345	$ (3,185)	$ (19,133)	$ 150	$ (5,100)
Stock options exercised (in shares)		0
Stock options exercised		$ 0	0
Stock-based compensation expense			168
Net income	$ 49,631			49,631
Common stock cash dividend				0
Cash flow hedges	(211)				(211)
Balance at Jul. 29, 2023	422,075	$ 1,017	40,561	407,976	(3,396)
Balance (in shares)		101,727,000				8,374,000
Balance (in shares)		101,942,000					150,000	150,000
Balance (in shares) at Apr. 27, 2024		101,942,000					150,000	150,000
Balance at Apr. 27, 2024	$ 559,512	$ 1,019	42,588	535,077	4,911	$ (19,133)	$ 150	$ (5,100)
Stock options exercised (in shares)	42,700	43,000
Stock options exercised		$ 1	344
Stock-based compensation expense			160
Net income	$ 56,780			56,780
Common stock cash dividend	(304,100)			(304,148)
Cash flow hedges	(6,053)				(6,053)
Balance at Jul. 27, 2024	$ 306,596	$ 1,020	$ 43,092	$ 287,709	$ (1,142)
Balance (in shares)		101,985,000				8,374,000