v3.25.4
Note 4 - Fair Value Measurements (Tables)
3 Months Ended
Dec. 31, 2025
Notes Tables  
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

Significant Unobservable Input

 

December 31, 2025

  

September 30, 2025

 

ONCO Series D Preferred Stock

        

Simulation Term (Years)

  1.2   1.5 

Expected Volatility

  68.5%  72.5%

Discount Rate

  25.0%  25.0%

Calibration Discount

  40.6%  48.6%

ONCO Warrant

        

Simulation Term (Years)

  2.7   3.0 

Equity Volatility

  70.7%  68.6%

Calibration Discount

  40.6%  48.6%
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Three Months Ended

 
  

December 31,

 
  

2025

  

2024

 

ONCO Series D Preferred Stock

        

Beginning balance

 $1,764,318  $ 

Additions

      

Change in fair value of equity securities

  205,097    

Ending balance

 $1,969,415  $ 

ONCO Warrant

        

Beginning balance

 $760,987  $ 

Additions

      

Change in fair value of equity securities

  (325,175)   

Ending balance

 $435,812  $