v3.26.1
Investments - Schedule of unrealized losses and fair value of available-for-sale securities (Details)
Mar. 31, 2026
USD ($)
Security
Dec. 31, 2025
USD ($)
Security
Sep. 30, 2025
USD ($)
Debt Securities, Available-for-Sale [Line Items]      
Unrealized losses less than 12 months, number of individual securities | Security 92 12  
Unrealized losses less than 12 months, fair value $ 115,840,233 $ 8,573,907  
Unrealized losses less than 12 months, unrealized losses $ 413,931 $ 11,926  
Unrealized losses 12 months or greater, number of individual securities | Security 0 0  
Unrealized losses 12 months or greater, fair value $ 0 $ 0  
Unrealized losses 12 months or greater, unrealized loss $ 0   $ 0
Total number of Individual Securities | Security 92 12  
Total fair value $ 115,840,233 $ 8,573,907  
Total unrealized loss $ 413,931 $ 11,926  
U.S. Treasury Securities [Member]      
Debt Securities, Available-for-Sale [Line Items]      
Unrealized losses less than 12 months, number of individual securities | Security 92 4  
Unrealized losses less than 12 months, fair value $ 115,840,233 $ 7,802,140  
Unrealized losses less than 12 months, unrealized losses $ 413,931 11,058  
Unrealized losses 12 months or greater, number of individual securities | Security 0    
Unrealized losses 12 months or greater, fair value $ 0 0  
Unrealized losses 12 months or greater, unrealized loss $ 0 $ 0  
Total number of Individual Securities | Security 92 4  
Total fair value $ 115,840,233 $ 7,802,140  
Total unrealized loss $ 413,931 $ 11,058  
Corporate Bonds [Member]      
Debt Securities, Available-for-Sale [Line Items]      
Unrealized losses less than 12 months, number of individual securities | Security   8  
Unrealized losses less than 12 months, fair value   $ 771,767  
Unrealized losses less than 12 months, unrealized losses   $ 868  
Unrealized losses 12 months or greater, number of individual securities | Security   0  
Unrealized losses 12 months or greater, fair value   $ 0  
Unrealized losses 12 months or greater, unrealized loss     $ 0
Total number of Individual Securities | Security   8  
Total fair value   $ 771,767  
Total unrealized loss   $ 868