Quarterly report [Sections 13 or 15(d)]

Note 4 - Fair Value Measurements - Significant Unobservable Inputs (Details)

v3.26.1
Note 4 - Fair Value Measurements - Significant Unobservable Inputs (Details) - Fair Value, Recurring [Member]
Mar. 31, 2026
Sep. 30, 2025
ONCO Series D Preferred Stock [Member] | Measurement Input, Expected Term [Member]    
Unobservable input 1 1.5
ONCO Series D Preferred Stock [Member] | Measurement Input, Price Volatility [Member]    
Unobservable input 0.702 0.725
ONCO Series D Preferred Stock [Member] | Measurement Input, Discount Rate [Member]    
Unobservable input 0.25 0.25
ONCO Series D Preferred Stock [Member] | Calibration Discount Rate [Member]    
Unobservable input 0 0.486
ONCO Warrant [Member] | Measurement Input, Expected Term [Member]    
Unobservable input 2.5 3
ONCO Warrant [Member] | Calibration Discount Rate [Member]    
Unobservable input 0 0.486
ONCO Warrant [Member] | Measurement Input, Option Volatility [Member]    
Unobservable input 0.722 0.686