Note 2 - Revenue Recognition - Segment Revenue Disaggregated by Product Category Groups (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Dec. 27, 2025	Dec. 28, 2024	Dec. 27, 2025	Dec. 28, 2024
Net sales	[1]	$ 508,348	$ 502,856	$ 1,265,828	$ 1,233,048
Canned Vegetables [Member]
Net sales		430,208	426,225	1,054,887	1,031,242
Frozen [Member]
Net sales		29,332	26,945	97,140	91,365
Fruit [Member]
Net sales		34,572	35,477	75,408	76,633
Snack [Member]
Net sales		3,423	4,700	11,943	11,603
Manufactured Product, Other [Member]
Net sales		$ 10,813	$ 9,509	$ 26,450	$ 22,205

[1] Information received by the CODM as part of net sales includes trade promotion costs representing amounts paid to retailers for shelf space, to obtain favorable display positions, and to offer temporary price reductions for the sale of the Company's products to consumers.