v3.26.1
Note 7 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
   

March 31, 2026

 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Money market funds (cash equivalents)

  $ 21,034,628     $ —     $ —     $ 21,034,628  

Total assets measured and recorded at fair value

  $ 21,034,628     $ —     $ —     $ 21,034,628  
   

December 31, 2025

 
   

Level 1

   

Level 2

   

Level 3

   

Total

 

Assets:

                               

Money market funds (cash equivalents)

  $ 13,228,720     $ —     $ —     $ 13,228,720  

Total assets measured and recorded at fair value

  $ 13,228,720     $ —     $ —     $ 13,228,720  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
   

Three Months Ended March 31,

 
   

2026

   

2025

 

Balance, beginning of period

  $ —     $ 89,010  

Change in fair value of warrant liabilities

    —       (61,194 )

Balance, end of period

  $ —     $ 27,816  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

March 31, 2025

 

Risk-free interest rate

    4.15 %

Remaining expected term of Private Warrants (years)

    0.71  

Expected volatility(1)

    163.50 %

Stock price on valuation date

  $ 0.95  

Exercise price

  $ 11.50  

Expected dividend

    — %