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Note F - Fair Value Measurements (Tables)
6 Months Ended
Sep. 27, 2015
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
March 29, 2015
 
Level 1
   
Level 2
   
Level 3
   
Carrying Value
 
                                 
Marketable securities
  $ -     $ 7,091     $ -     $ 7,091  
                                 
Total assets at fair value
  $ -     $ 7,091     $ -     $ 7,091