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Investments Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Amortized Cost |  |
Amortized Cost | $ 28 | $ 30
Fair Value |  |
Fair Value | 27 | $ 29
Amortized Cost |  |
Amortized Cost | 45,218 |
Fair Value |  |
Fair Value | 45,333 |
U.S. Agency residential mortgage-backed securities and collateralized mortgage obligations |  |
Amortized Cost |  |
Without single maturity date | 28 |
Fair Value |  |
Without single maturity date | 27 |
Amortized Cost |  |
Without single maturity date | 45,218 |
Fair Value |  |
Without single maturity | $ 45,333 |

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