Quarterly report [Sections 13 or 15(d)]

Note 12 - Stockholders' Equity (Tables)

v3.25.1
Note 12 - Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended March 31,

 
   

2025

   

2024

 

Plant operations

  $ 8     $ 86  

Research and development cost

    38       20  

General and administrative expense

    655       668  

Total

  $ 701     $ 774  
Share-based Payment Arrangement, Option and Restricted Stock Unit, Activity [Table Text Block]
   

Number of Shares

   

Number of

   

Number of

 
   

Available for

   

PSUs

   

RSUs

 
   

Grant

   

Outstanding

   

Outstanding

 

Balances, December 31, 2024

    (232,441 )     180,181       874,097  

Granted

    (148,816 )           148,816  

Released

                (61,702 )

Forfeited

    56,297             (56,297 )

Returned to Plan

    26,476              

Balances, March 31, 2025

    (298,484 )     180,181       904,914