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Note 12 - Leases (Tables)
6 Months Ended
Sep. 30, 2025
Notes Tables  
Lease, Cost [Table Text Block]
  

Six Months Ended

  

Six Months Ended

 
  

September 30,

  

September 30,

 
  

2025

  

2024

 

Fixed rent cost

 $153  $243 

Short term lease cost

  70   110 

Total operating lease cost

 $223  $353 
  

September 30,

  

March 31,

 

Operating leases

 

2025

  

2025

 

Operating lease right-of-use assets

 $80  $97 
         

Operating lease liability, current

 $10  $- 

Operating lease liability, noncurrent

  76   99 

Total operating lease liabilities

 $86  $99