Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stockholders' Equity (Tables)

v3.24.1.1.u2
Note 11 - Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended March 31,

 
   

2024

   

2023

 

Plant operations

  $ 86     $ 29  

Research and development cost

    20       18  

General and administrative expense

    668       640  

Total

  $ 774     $ 687  
Share-based Payment Arrangement, Option and Restricted Stock Unit, Activity [Table Text Block]
           

RSUs Outstanding

 
                 
   

Number of

         
   

Shares

         
   

Available for

   

Number of

 
   

Grant

   

RSUs

 

Balances, December 31, 2023

    1,420,454       8,654,491  

Granted

    (111,522 )     111,522  

Exercised/ Released

          (1,095,855 )

Forfeited

    138,674       (138,674 )

Returned to Plan

    456,646        

Balances, March 31, 2024

    1,904,252       7,531,484