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Note 5 - Inventories (Tables)
6 Months Ended
Sep. 27, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
September 27, 2020
   
March 29, 2020
 
Raw Materials
  $
518
    $
597
 
Work in Process
   
28
     
23
 
Finished Goods
   
18,645
     
17,112
 
Total inventory
  $
19,191
    $
17,732