v3.24.1.1.u2
Note 8 - Stock-based Compensation (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

 

General and Administrative

  $ 68     $ 140  

Research and Development

    35       40  
    $ 103     $ 180  
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
         

Outstanding, Vested and Expected to Vest

   

Options Vested and Exercisable

 

Per Share Exercise Price

   

Shares

   

Weighted Average

Remaining

Contractual Life

(Years)

   

Weighted

Average

Exercise Price

   

Options Exercisable

   

Weighted Average

Remaining

Contractual Life

(Years)

 
                                               
  $300         503       8.99     $ 300.00       503       8.99  

$5,280

- $7,709       39       6.75     $ 5,280.00       39       6.75  
$26,400 - $98,160       37       5.04     $ 79,787.03       37       5.04  
$100,080 - $362,400       28       5.04     $ 194,220.00       28       5.04  
                                               

Totals

        607       8.43     $ 14,410.36       607       8.43