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Investment Securities - Schedule of Investments Classified by Contractual Maturity Date (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Amortized Cost    
Debt securities, available-for-sale, amortized cost, within one year $ 1,143,000  
Debt securities, available-for-sale, amortized cost, one to five years 23,840,000  
Debt securities, available-for-sale, amortized cost, five to ten years 49,238,000  
Debt securities, available-for-sale, amortized cost, after ten years 111,280,000  
Debt securities, available for sale, amortized cost 185,501,000  
Debt securities, available for sale, amortized cost, mortgage backed securities -GSE residential 106,885,000  
Fair Value    
Debt securities, available-for-sale, fair value, within one year 1,136,000  
Debt securities, available-for-sale, fair value, one to five years 22,851,000  
Debt securities, available-for-sale, fair value, five to ten years 44,128,000  
Debt securities, available-for-sale, fair value, after ten years 86,475,000  
Debt securities, available for sale, fair value 154,590,000  
Debt securities, available for sale, fair value, mortgage backed securities -GSE residential 90,929,000  
Amortized Cost    
Held-to-Maturity, amortized cost, within one year 365,000  
Held-to-Maturity, amortized cost, one to five years 928,000  
Held-to-Maturity, amortized cost, five to ten years 450,000  
Held-to-Maturity, amortized cost, after ten years 610,000  
Debt securities, held-to-maturity, amortized cost 2,353,000  
Held-to-Maturity, amortized cost, mortgage backed securities -GSE residential 0  
Fair Value    
Held-to-Maturity, fair value, within one year 365,000  
Held-to-Maturity, fair value, one to five years 928,000  
Held-to-Maturity, fair value, five to ten years 447,000  
Held-to-Maturity, fair value, after ten years 562,000  
Held-to-Maturity, fair value 2,302,000  
Held-to-Maturity, fair value, mortgage backed securities -GSE residential 0  
Debt securities, available-for-sale, and equity securities, amortized cost 292,386,000  
Debt securities, available-for-sale, and equity securities, fair value 245,519,000  
Debt securities, held-to-maturity, amortized cost 2,353,338 $ 2,747,889
Debt securities, held-to-maturity, fair value $ 2,302,000 $ 2,717,000