Note 2 - Revenue Recognition - Segment Revenue Disaggregated by Product Category Groups (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 28, 2024	Dec. 30, 2023
Net sales	$ 502,856	$ 444,481	$ 1,233,048	$ 1,150,620
Canned Vegetables [Member]
Net sales	426,225	372,690	1,031,242	952,226
Frozen [Member]
Net sales	26,945	27,454	91,365	92,039
Fruit [Member]
Net sales	35,477	32,022	76,633	71,561
Snack [Member]
Net sales	4,700	3,463	11,603	10,817
Manufactured Product, Other [Member]
Net sales	$ 9,509	$ 8,852	$ 22,205	$ 23,977