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Investment Securities - Schedule of Held-to-Maturity Credit Quality Indicators (Details) - USD ($) | Mar. 31, 2026 | Dec. 31, 2025
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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

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