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Note 1 - General (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Dec. 28, 2024
Dec. 23, 2023
Dec. 28, 2024
Dec. 23, 2023
Mar. 30, 2024
Investments $ 0.1   $ 0.1   $ 0.1
Share-Based Payment Arrangement, Expense     2.1 $ 3.3  
Realized Gain (Loss), Foreign Currency Transaction, before Tax     (0.1) 0.1  
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax     $ 0.2 $ 0.2  
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.5   $ 0.5   $ 0.5
Dilutive Securities, Effect Per Share on Earnings (in dollars per share) $ 0.01 $ 0.01 $ 0.01 $ 0.01  
Foreign Exchange Contract [Member]          
Derivative Asset, Notional Amount $ 2.9   $ 2.9