v3.25.3
Note 3 - Inventories (Tables)
6 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

September 30,

2025

  

March 31,

2025

 
  

(in thousands)

 

Raw materials

 $749  $567 

Work in process

  3,093   1,498 

Finished goods

  4,287   5,379 

Supplies

  249   344 

Inventories

 $8,378  $7,788