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Note 7 - Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Lease, Cost [Table Text Block]
   

For the Three Months

Ended

September 30,

   

For the Nine Months

Ended

September 30,

 
   

2025

   

2024

   

2025

   

2024

 

Operating lease – expense

  $ 50     $ 100     $ 173     $ 200  

Operating lease – included in operating cash flow

    103       117       287       193  
   

September 30,

2025

   

September 30,

2024

 

Weighted-average remaining lease term (in years)

    1.8       3.1  

Weighted-average discount rate

    5 %     5 %
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

2025

  $ 120  

2026

    444  

2027

    290  

Total future minimum lease payments

    854  

Less: Imputed interest

    (33 )

Total

  $ 821  
         

Reported as:

       

Operating lease liability

  $ 416  

Operating lease liability- non-current

    405  

Total

  $ 821