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Note 10 - Property, Plant and Equipment (Tables)
9 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

December 31, 2021

   

March 31, 2021

 

Construction in progress - equipment

  $ 506     $ 220  

Land

    980       270  

Building

    5,270       1,630  

Equipment and software

    43,721       41,652  

Finance lease - right of use asset

    9        

Furniture and fixtures

    1,381       1,333  

Leasehold improvements

    6,594       6,308  

Property, plant and equipment, gross

    58,461       51,413  

Less accumulated depreciation

    (44,343 )     (42,416 )

Property, plant and equipment, net

  $ 14,118     $ 8,997