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Note 3 - Inventories
12 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
Note
3.
Inventories
 
Inventories consist of the following (in thousands):
 
   
March 3
1,
 
   
201
8
   
201
7
 
Raw materials
  $
9,059
    $
10,815
 
Work-in-process
   
380
     
342
 
Finished goods
   
3,152
     
3,604
 
Less reserve
   
(3,363
)    
(888
)
    $
9,228
    $
13,873