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Note 15 - Regulatory Capital - Schedule of Comparison (Details) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022
--- | --- | ---
Actual, Capital, Rate | 0.137 | 0.14
Actual, Tier 1 Risk-based Rate | 0.105 | 0.107
Actual, Tier 1 Leverage Rate | 0.09 | 0.097
Actual, CET 1 Rate | 0.105 | 0.107
First Security Bank of Washington, Subsidiary [Member] |  |
Actual, Capital | $ 339,436 |
Actual, Capital, Rate | 0.1337 |
Capital Adequacy, Total | $ 203,094 |
Capital Adequacy, Total Rate | 0.08 |
Capital Adequacy, Total Risk-based with Buffer | $ 266,561 |
Capital Adequacy, Total Risk-based with Buffer, Rate | 0.105 |
Well Capitalized, Total Capital | $ 253,868 |
Well Capitalized, Total Capital Rate | 0.10 |
Actual, Tier 1 Risk-based | $ 307,686 |
Actual, Tier 1 Risk-based Rate | 0.1212 |
Capital Adequacy, Tier 1 Risk-based | $ 152,321 |
Capital Adequacy, Tier 1 Risk-based Rate | 0.06 |
Capital Adequacy, Tier 1 Risk-based with Buffer | $ 215,787 |
Capital Adequacy, Tier 1 Risk-based with Buffer, Rate | 0.085 |
Well Capitalized, Tier 1 Risk-based | $ 203,094 |
Well Capitalized, Tier 1 Risk-based Rate | 0.08 |
Actual, Tier 1 Leverage | $ 307,686 |
Actual, Tier 1 Leverage Rate | 0.1039 |
Capital Adequacy, Tier 1 Leverage | $ 118,488 |
Capital Adequacy, Tier 1 Leverage Rate | 0.04 |
Well Capitalized, Tier 1 Leverage | $ 148,109 |
Well Capitalized, Tier 1 Leverage Rate | 0.05 |
Actual, CET 1 | $ 307,686 |
Actual, CET 1 Rate | 0.1212 |
Capital Adequacy, CET 1 | $ 114,240 |
Capital Adequacy, CET 1 Rate | 0.045 |
Capital Adequacy, CET 1 with Buffer | $ 177,707 |
Capital Adequacy, CET 1 with Buffer , Rate | 0.07 |
Well Capitalized, CET 1 | $ 165,014 |
Well Capitalized, CET 1 Rate | 0.065 |

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