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Investment Securities - Schedule of Held-to-Maturity Credit Quality Indicators (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Investment securities - held to maturity $ 2,353,338 $ 2,747,889
State and municipal obligations    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Investment securities - held to maturity 2,353,000 2,748,000
State and municipal obligations | AA+    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Investment securities - held to maturity 175,000 350,000
State and municipal obligations | A+    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Investment securities - held to maturity 190,000 375,000
State and municipal obligations | Not rated    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Investment securities - held to maturity $ 1,988,000 $ 2,023,000