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Note 4 - Equipment and Leasehold Improvements (Tables)
3 Months Ended
Jun. 30, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

June 30,

2022

  

March 31,

2022

 
  

(in thousands)

 

Equipment

 $20,386  $20,231 

Leasehold improvements

  14,786   14,751 

Furniture and fixtures

  401   394 
   35,573   35,376 

Less accumulated depreciation and amortization

  (24,756

)

  (24,339

)

Construction-in-progress

  1,099   848 

Equipment and leasehold improvements, net

 $11,916  $11,885