v3.26.1
Disclosures About Fair Value of Assets and Liabilities - Schedule of Estimated Fair Values of Financial Instruments (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost $ 91,011,972 $ 94,455,878
Time Deposits 516,634,975 487,032,489
U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 41,948,876 41,878,600
U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 13,452,138 13,308,535
State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 3,721,150 3,744,446
Carrying amounts [Member]    
Financial assets    
Cash and cash equivalents 170,114,306 144,318,929
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 94,342,911 97,728,121
Loans Receivable 1,921,813,487 1,855,437,066
Time Deposits 516,634,975 487,032,489
Long-Term borrowings 73,247,223 78,587,361
Short-Term borrowings 102,569,888 88,251,290
Interest rate swaps 15,693,711 14,130,763
Carrying amounts [Member] | U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 42,519,879 42,681,410
Carrying amounts [Member] | U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 13,728,209 13,599,444
Carrying amounts [Member] | Mortgage-backed: GSE residential [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 34,191,493 37,534,375
Carrying amounts [Member] | State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 3,903,330 3,912,892
Carrying amounts [Member] | Level 1 [Member]    
Financial assets    
Cash and cash equivalents 170,114,306 144,318,929
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Loans Receivable
Time Deposits
Long-Term borrowings
Short-Term borrowings 102,569,888 88,251,290
Interest rate swaps
Carrying amounts [Member] | Level 1 [Member] | U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 1 [Member] | U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 1 [Member] | Mortgage-backed: GSE residential [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 1 [Member] | State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 2 [Member]    
Financial assets    
Cash and cash equivalents
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 91,011,972 94,455,878
Loans Receivable
Time Deposits 513,166,000 485,172,000
Long-Term borrowings 66,840,000 77,385,800
Short-Term borrowings
Interest rate swaps 15,693,711 14,130,763
Carrying amounts [Member] | Level 2 [Member] | U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 41,948,876 41,878,600
Carrying amounts [Member] | Level 2 [Member] | U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 13,452,138 13,308,535
Carrying amounts [Member] | Level 2 [Member] | Mortgage-backed: GSE residential [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 31,889,808 35,524,297
Carrying amounts [Member] | Level 2 [Member] | State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 3,721,150 3,744,446
Carrying amounts [Member] | Level 3 [Member]    
Financial assets    
Cash and cash equivalents
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Loans Receivable 1,899,203,000 1,820,894,000
Time Deposits
Long-Term borrowings
Short-Term borrowings
Interest rate swaps
Carrying amounts [Member] | Level 3 [Member] | U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 3 [Member] | U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 3 [Member] | Mortgage-backed: GSE residential [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Carrying amounts [Member] | Level 3 [Member] | State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost
Estimated fair values [Member]    
Financial assets    
Cash and cash equivalents 170,114,306 144,318,929
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 91,011,972 94,455,878
Loans Receivable 1,899,203,000 1,820,894,000
Time Deposits 513,166,000 485,172,000
Long-Term borrowings 66,840,000 77,385,800
Short-Term borrowings 102,569,888 88,251,290
Interest rate swaps 15,693,711 14,130,763
Estimated fair values [Member] | U.S. Government and federal agency [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 41,948,876 41,878,600
Estimated fair values [Member] | U.S. Government-sponsored enterprises (GSEs) [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 13,452,138 13,308,535
Estimated fair values [Member] | Mortgage-backed: GSE residential [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost 31,889,808 35,524,297
Estimated fair values [Member] | State and political subdivisions [Member]    
Held-to-maturity securities    
Held-to-maturity securities, at amortized cost $ 3,721,150 $ 3,744,446