v3.26.3
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of cash and restricted cash (Details) - USD ($)
Sep. 30, 2026
Dec. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Cash and cash equivalents $ 22,645,058  
Cash segregated under federal and other regulations 4,167,036  
Total cash $ 26,812,094 $ 28,387,261