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Note 10 - Property, Plant and Equipment
 6 Months Ended
Sep. 30, 2025
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]

10. Property, Plant and Equipment

 

The cost and accumulated depreciation of property, plant and equipment at  September 30, 2025 and  March 31, 2025 are as follows (in thousands):

 

  

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 

 

Depreciation expense was $0.9 million and $0.8 million for the three months ended September 30, 2025 and 2024, respectively. Depreciation expense was $1.8 million and $1.4 million for the six months ended September 30, 2025 and 2024, respectively.