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Note 10 - Property, Plant and Equipment (Tables)
6 Months Ended
Sep. 30, 2025
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

September 30, 2025

  

March 31, 2025

 

Land

 $22,650  $22,650 

Construction in progress – equipment

  601   1,371 

Buildings

  7,986   7,528 

Equipment and software

  49,969   47,774 

Furniture and fixtures

  1,728   1,672 

Leasehold improvements

  8,256   7,969 

Property, plant and equipment, gross

  91,190   88,964 

Less accumulated depreciation

  (52,234)  (50,392)

Property, plant and equipment, net

 $38,956  $38,572