v3.26.1
Note 5 - Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three Months Ended

  

Six Months Ended

 
  

June 30,

  

June 30,

 

($ in thousands)

 

2026

  

2025

  

2026

  

2025

 

Research and development

 $87  $75  $162  $141 

General and administrative

  101   89   186   162 

Total stock-based compensation expense

 $188  $164  $348  $303 
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
      

Weighted

 
  

Number of

  

Average Grant

 
  Units  Date Fair Value 

Unvested balance at December 31, 2025

  620,164  $1.15 

Granted

  753,333  $1.09 

Unvested balance at June 30, 2026

  1,373,497  $1.12 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted

     
          

Average

     
      

Weighted

  

Remaining

  

Aggregate

 
  

Number

  

Average

  

Contractual

  

Intrinsic Value

 
  

of Options

  

Exercise Price

  

Term (years)

  

(in thousands)

 

Outstanding at December 31, 2025

  50,000  $1.01   9.0  $3,500 

Exercised/Forfeited

     -       

Outstanding at June 30, 2026

  50,000  $1.01   8.5