Note 2 - Discontinued Operations - Asset and Liabilities in Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 29, 2019	Jun. 30, 2018	Mar. 31, 2019
Noncurrent Assets Held For Sale-Discontinued Operations		$ 1,143	$ 21,632	$ 1,143
Net Loss From Discontinued Operations, Net of Tax			(6,595)
Modesto Facility [Member] | Discontinued Operations, Disposed of by Sale [Member]
Accounts Receivable			14,880
Inventories			1,739
Other Current Assets		98	77
Current Assets Held For Sale-Discontinued Operations		98	16,696
Other Assets		1,143	1,656
Property, Plant and Equipment (net)			19,976
Noncurrent Assets Held For Sale-Discontinued Operations		1,143	21,632
Accounts Payable and Accrued Expenses		3,653	25,589
Long-Term Debt and Capital Leases Current Portion			8,067
Current Liabilities Held For Sale-Discontinued Operations		3,653	33,656
Long-Term Debt and Capital Lease Obligations			624
Noncurrent Liabilities Held For Sale Discontinued Operations			624
Net Sales			99,299
Cost of Product Sold			110,189
Selling, General and Administrative			780
Plant Restructuring Charge (a)	[1]		1,782
Interest (Income) Expense (b)	[2]		624
Total cost and expenses			113,375
Loss From Discontinued Operations Before Income Taxes			(14,076)
Gain on the Sale of Assets Before Income Taxes (c) (d)	[3],[4]		(5,638)
Income Tax Benefit			(1,843)
Net Loss From Discontinued Operations, Net of Tax			(6,595)
Capital Expenditures			4,260
Depreciation			$ 677

[1] Includes $1,653,000 of Modesto severance in first quarter of fiscal 2019.

[2] Includes interest on debt directly related to Modesto including the building mortgage and equipment leases and an allocation of the Company's line of credit facility.

[3] Includes $663,000 gain on the sale of Modesto equipment in first quarter of fiscal 2019.

[4] Includes a $4,975,000 gain on the sale of bins in the first quarter of fiscal 2019.