XML 54 R40.htm IDEA: XBRL DOCUMENT v3.19.1
Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Mar. 03, 2019
Feb. 25, 2018
Feb. 26, 2017
Jul. 25, 2018
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 71,007 $ 18,254    
Sales Returns and Allowance as Percentage of Sales 1.00% 1.00% 1.00%  
Impairment of Long-Lived Assets Held-for-use $ 0 $ 67 $ 0  
Finite-Lived Intangible Asset, Useful Life 15 years      
Goodwill, Impairment Loss $ 0 0 0  
Depreciation, Depletion and Amortization, Total $ 1,784 1,833 $ 1,851  
Machinery, Equipment, Furniture and Fixtures [Member]        
Property, Plant and Equipment, Useful Life 10 years      
Land, Buildings and Improvements [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life 25 years      
Land, Buildings and Improvements [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life 30 years      
Cash and Cash Equivalents, Foreign Financial Institutions [Member]        
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 65,144 7,513    
Company’s Wholly Owned Foreign Subsidiaries [Member]        
Cash and Marketable Securities 126,196 151,624    
Debt Securities [Member]        
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 49,707 $ 4,983    
Electronics Business [Member] | Electronics Business [Member]        
Disposal Group, Including Discontinued Operation, Consideration       $ 145,000