Note 2 - Revenue Recognition - Segment Revenue Disaggregated by Product Category Groups (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 01, 2023	Jul. 02, 2022
Net sales	$ 298,664	$ 265,193
Canned Vegetables [Member]
Net sales	250,950	218,335
Frozen [Member]
Net sales	21,539	19,711
Fruit [Member]
Net sales	16,738	18,332
Snack [Member]
Net sales	3,098	2,980
Manufactured Product, Other [Member]
Net sales	$ 6,339	$ 5,835