XML 40 R29.htm IDEA: XBRL DOCUMENT v3.20.2
Note 8 - Inventory (Tables)
6 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
September 30, 2020
   
March 31, 2020
 
Raw materials   $
4,989
    $
10,739
 
Work-in-process    
2,283
     
1,345
 
Finished goods    
5,269
     
5,260
 
Deferred program costs    
1,614
     
1,631
 
Net inventory
  $
14,155
    $
18,975