v3.26.1
Nature of Operations and Summary of Significant Accounting Policies - Concentrations of credit risk (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Loans receivable $ 92,013,193 $ 92,991,369
Commercial and consumer loan portfolio | BHG Financial    
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Loans receivable $ 19,800,000 $ 21,800,000
Total loans outstanding | Credit risk | Commercial and consumer loan portfolio | BHG Financial    
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Concentration risk 21.50% 23.40%