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Junior Subordinated Debentures (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2007 | Dec. 31, 2022 | May 01, 2014
Debt Instrument [Line Items] |  |  |  |
Junior subordinated debentures | $ 21,765 |  | $ 21,473 |
Issued amount |  | $ 25,000 |  |
Maturity |  | 30 years |  |
Basis spread on variable rate (as a percent) | 1.56% |  |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Adjustable rate of preferred securities | 7.23% |  | 6.33% |
Washington Banking |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Junior subordinated debentures |  |  |  | $ 18,900

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