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Note 12 - Discontinued Operations (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 04, 2018
Feb. 26, 2023
Feb. 27, 2022
Feb. 28, 2021
Mar. 01, 2020
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   $ 0 $ 0 $ (328)  
Electronics Business [Member]          
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   0 $ 0 $ (328)  
Electronics Business [Member] | Discontinued Operations, Disposed of by Sale [Member]          
Disposal Group, Including Discontinued Operation, Consideration $ 145,000        
Proceeds from Divestiture of Businesses 124,156        
Disposal Group, Including Discontinued Operation, Transaction Costs and Taxes 7,657        
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation 13,187        
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax $ 102,145        
Disposal Group, Including Discontinued Operation, Consideration Allocation, Percent 2.00%        
Disposal Group, Including Discontinued Operation, Blended Tax Rate, Percent       24.70% 26.40%
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   $ 0      
Electronics Business [Member] | Discontinued Operations, Disposed of by Sale [Member] | SINGAPORE          
Disposal Group, Including Discontinued Operation, Consideration Allocation, Percent 82.00%        
Electronics Business [Member] | Discontinued Operations, Disposed of by Sale [Member] | France [Member]          
Disposal Group, Including Discontinued Operation, Consideration Allocation, Percent 16.00%