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Note 10 - Property, Plant and Equipment
 6 Months Ended
Sep. 30, 2023
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, 2023 and  March 31, 2023 are as follows (in thousands):

 

  

September 30, 2023

  

March 31, 2023

 

Land

 $980  $980 

Construction in progress - equipment

  342   748 

Buildings

  5,416   5,416 

Equipment and software

  43,915   43,156 

Finance lease - right of use asset

  1   1 

Furniture and fixtures

  1,531   1,535 

Leasehold improvements

  6,812   6,815 

Property, plant and equipment, gross

  58,997   58,651 

Less accumulated depreciation

  (47,414)  (46,342)

Property, plant and equipment, net

 $11,583  $12,309 

 

Depreciation expense was $0.6 million and $0.7 million for the three months ended September 30, 2023 and 2022, respectively. Depreciation expense was $1.2 million and $1.4 million for the six months ended  September 30, 2023 and 2022, respectively.