Note 3 - Other Consolidated Balance Sheet Data - Other Consolidated Balance Sheet Data (Details) - USD ($) $ in Thousands	Feb. 27, 2022	Feb. 28, 2021
Raw materials	$ 4,026	$ 3,490
Work-in-process	253	147
Finished goods	378	1,157
Inventory, Net, Total	4,657	4,794
Property, Plant and Equipment, Gross	49,635	51,682
Less: accumulated depreciation and amortization	25,302	30,552
Property, Plant and Equipment, Net	24,333	21,130
Goodwill	9,776	9,776
Other intangibles	14	21
Intangible Assets, Net (Including Goodwill), Total	9,790	9,797
Payroll and payroll related	688	596
Employee benefits	3	2
Workers' compensation	96	138
Professional fees	512	451
Restructuring (Notes 8 and 12)	8	260
Other	187	261
Accrued Liabilities, Current, Total	1,494	1,708
Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Gross	16,054	14,236
Machinery, Equipment, Furniture and Fixtures [Member]
Property, Plant and Equipment, Gross	$ 33,581	$ 37,446