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Note 4 - Inventories 2
3 Months Ended 12 Months Ended
Jun. 30, 2018
Mar. 31, 2018
Notes to Financial Statements    
Inventory Disclosure [Text Block]
(
4
)         
 Inventories
 
Inventories consisted of the following:
 
(In thousands)
 
June
30
,
201
8
   
March
31
,
201
8
 
Raw materials
  $
1,147
    $
2,290
 
Work-in-progress
   
1,749
     
2,100
 
Finished goods
   
81
     
561
 
Demonstration inventory
   
461
     
536
 
Total
  $
3,438
    $
5,487
 
4
Inventories
 
Inventories consisted of the following:
 
 
(Dollars in thousands)
 
March 31
,
201
8
   
March 25
,
201
7
 
Raw materials
  $
2,290
    $
1,775
 
Work-in-progress
   
2,100
     
2,155
 
Finished goods
   
561
     
473
 
Demonstration inventory
   
536
     
408
 
Total
  $
5,487
    $
4,811