v3.26.1
Note 11 - Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
      

Weighted

 
      

Average Grant

 
  

Number of Units

  

Fair Value

 

Unvested balance at December 31, 2024

  174,038   2.36 

Granted

  570,671   1.01 

Vested

  (39,494)  2.11 

Forfeited

  (85,051)  2.23 

Unvested balance at December 31, 2025

  620,164   1.15 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted

     
      

Weighted

  

Average

  

Aggregate

 
      

Average

  

Contractual

  

Intrinsic

 
  

Number

  

Exercise

  

Term

  

Value

 
  

of Shares

  

Price

  

(in years)

  

(in thousands)

 
                 

Outstanding as of December 31, 2023

  9  $4,725,600   3.2  $ 

Forfeited

  (9)  (4,725,600)  3.2     

Outstanding as of December 31, 2024

    $     $ 

Granted

  75,000  $1.01   9.0   5,250 

Forfeited

  (25,000) $1.01   9.0   (1,750)

Outstanding as of December 31, 2025

  50,000  $1.01   9.0  $3,500 
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Year ended December 31,

 

($ in thousands)

 

2025

  

2024

 

Research and development

  273   46 

General and administrative

  209   25 

Total stock-based compensation expense (forfeiture)

  482   71