Note 13 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Dec. 27, 2025	Sep. 27, 2025	Jun. 28, 2025	Dec. 28, 2024	Sep. 28, 2024	Jun. 29, 2024	Dec. 27, 2025		Dec. 28, 2024	Mar. 31, 2025
Net sales	[1]	$ 508,348			$ 502,856			$ 1,265,828		$ 1,233,048
Cost of products sold		424,888			453,746			1,078,690		1,098,376
Selling and advertising expense	[2]	11,143			11,231			28,387		27,479
General and administrative expense		12,487			11,435			34,529	[2]	30,735
Other segment items	[3]	(2,940)			(745)			(7,047)		(3,658)
Interest expense (income), net		4,128			7,841			14,222		27,199
Earnings before income taxes		58,642			19,348			117,047		52,917
Income taxes		13,874			4,689			27,655		12,294
Net earnings		44,768	$ 29,739	$ 14,885	14,659	$ 13,303	$ 12,661	89,392		40,623
Depreciation and amortization	[4]	10,903			11,526			33,400		33,556
Capital expenditures	[5]	7,697			31,341			27,367		50,316
Total assets		1,222,506			1,225,915			1,222,506		1,225,915	$ 1,181,429
Subtotal FIFO Basis [Member]
Net sales	[1]	508,348			502,856			1,265,828		1,233,048
Cost of products sold		427,532			442,827			1,100,806		1,075,398
Selling and advertising expense	[2]	11,143			11,231			28,387		27,479
General and administrative expense		12,487			11,435			34,529	[2]	30,735
Other segment items	[3]	(2,940)			(745)			(7,047)		(3,658)
Interest expense (income), net		4,128			7,841			14,222		27,199
Earnings before income taxes		55,998			30,267			94,931		75,895
Depreciation and amortization	[4]	10,903			11,526			33,400		33,556
Capital expenditures	[5]	7,697			31,341			27,367		50,316
Total assets		1,559,646			1,573,675			1,559,646		1,573,675
LIFO Impact [Member]
Net sales	[1]	0			0			0		0
Cost of products sold		(2,644)			10,919			(22,116)		22,978
Selling and advertising expense	[2]	0			0			0		0
General and administrative expense		0			0			0	[2]	0
Other segment items	[3]	0			0			0		0
Interest expense (income), net		0			0			0		0
Earnings before income taxes		2,644			(10,919)			22,116		(22,978)
Depreciation and amortization	[4]	0			0			0		0
Capital expenditures	[5]	0			0			0		0
Total assets		(337,140)			(347,760)			(337,140)		(347,760)
Operating Segments [Member] | Vegetable Segment [Member]
Net sales	[1]	459,540			453,170			1,152,027		1,122,607
Cost of products sold		389,532			405,262			1,013,535		992,353
Selling and advertising expense	[2]	10,313			10,173			26,210		25,056
General and administrative expense		7,693			7,157			22,622	[2]	19,997
Other segment items	[3]	(137)			784			(376)		676
Interest expense (income), net		3,731			5,918			12,222		22,493
Earnings before income taxes		48,408			23,876			77,814		62,032
Depreciation and amortization	[4]	8,913			9,459			27,245		26,847
Capital expenditures	[5]	6,405			31,136			24,526		49,336
Total assets		1,446,907			1,467,960			1,446,907		1,467,960
Operating Segments [Member] | Fruit and Snack Segment [Member]
Net sales	[1]	37,995			40,177			87,351		88,236
Cost of products sold		29,652			33,921			69,073		72,254
Selling and advertising expense	[2]	786			1,009			2,018		2,251
General and administrative expense		883			814			2,493	[2]	2,473
Other segment items	[3]	0			0			(20)		0
Interest expense (income), net		388			561			1,037		1,863
Earnings before income taxes		6,286			3,872			12,750		9,395
Depreciation and amortization	[4]	802			847			2,484		2,533
Capital expenditures	[5]	997			205			2,546		980
Total assets		110,813			103,117			110,813		103,117
Operating Segments [Member] | Corporate Segment and Other Operating Segment [Member]
Net sales	[1]	10,813			9,509			26,450		22,205
Cost of products sold		8,348			3,644			18,198		10,791
Selling and advertising expense	[2]	44			49			159		172
General and administrative expense		3,911			3,464			9,414	[2]	8,265
Other segment items	[3]	(2,803)			(1,529)			(6,651)		(4,334)
Interest expense (income), net		9			1,362			963		2,843
Earnings before income taxes		1,304			2,519			4,367		4,468
Depreciation and amortization	[4]	1,188			1,220			3,671		4,176
Capital expenditures	[5]	295			0			295		0
Total assets		$ 1,926			$ 2,598			$ 1,926		$ 2,598

[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.

[2] Information received by the CODM as part of selling and advertising expenses includes direct selling expenses such as brokerage costs, sales force employee compensation, and costs incurred to execute sales to customers.

[3] Other segment items include other operating (income) expense, net and other non-operating income, each of which are not considered to be significant segment expenses. These amounts are combined into one line for purposes of reconciling to the reported measure of earnings (loss) before income taxes.

[4] Depreciation and amortization are required to be disclosed as both amounts are included in the reported measure of earnings (loss) before income taxes. The amounts are not considered to be significant segment expenses and therefore are shown separately as an additional segment disclosure. Depreciation and amortization are included within the line items for cost of products sold and general and administrative expense.

[5] Capital expenditures represent fixed asset additions recorded during the respective interim period, regardless of payment timing. The total shown for each interim period reconciles to amounts reported on the condensed consolidated statements of cash flows within the sections for net cash used in investing activities and supplemental noncash transaction information.