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Note 13 - Regulatory Capital - Schedule of Comparison (Details) $ in Thousands | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Actual, Capital, Rate | 0.141 | 0.137
Actual, Tier 1 Risk-based Rate | 0.109 | 0.105
Actual, Tier 1 Leverage Rate | 0.095 | 0.09
Actual, CET 1 Rate | 0.109 | 0.105
First Security Bank of Washington, Subsidiary [Member] |  |
Actual, Capital | $ 355,165 | $ 339,436
Actual, Capital, Rate | 0.1385 | 0.1337
Capital Adequacy, Total | $ 205,122 | $ 203,094
Capital Adequacy, Total Rate | 0.08 | 0.08
Capital Adequacy, Total Risk-based with Buffer | $ 269,223 | $ 266,561
Capital Adequacy, Total Risk-based with Buffer, Rate | 0.105 | 0.105
Well Capitalized, Total Capital | $ 256,403 | $ 253,868
Well Capitalized, Total Capital Rate | 0.10 | 0.10
Actual, Tier 1 Risk-based | $ 323,105 | $ 307,686
Actual, Tier 1 Risk-based Rate | 0.126 | 0.1212
Capital Adequacy, Tier 1 Risk-based | $ 153,842 | $ 152,321
Capital Adequacy, Tier 1 Risk-based Rate | 0.06 | 0.06
Capital Adequacy, Tier 1 Risk-based with Buffer | $ 217,943 | $ 215,787
Capital Adequacy, Tier 1 Risk-based with Buffer, Rate | 0.085 | 0.085
Well Capitalized, Tier 1 Risk-based | $ 205,122 | $ 203,094
Well Capitalized, Tier 1 Risk-based Rate | 0.08 | 0.08
Actual, Tier 1 Leverage | $ 323,105 | $ 307,686
Actual, Tier 1 Leverage Rate | 0.1094 | 0.1039
Capital Adequacy, Tier 1 Leverage | $ 118,153 | $ 118,488
Capital Adequacy, Tier 1 Leverage Rate | 0.04 | 0.04
Well Capitalized, Tier 1 Leverage | $ 147,691 | $ 148,109
Well Capitalized, Tier 1 Leverage Rate | 0.05 | 0.05
Actual, CET 1 | $ 323,105 | $ 307,686
Actual, CET 1 Rate | 0.126 | 0.1212
Capital Adequacy, CET 1 | $ 115,381 | $ 114,240
Capital Adequacy, CET 1 Rate | 0.045 | 0.045
Capital Adequacy, CET 1 with Buffer | $ 179,482 | $ 177,707
Capital Adequacy, CET 1 with Buffer, Rate | 0.07 | 0.07
Well Capitalized, CET 1 | $ 166,662 | $ 165,014
Well Capitalized, CET 1 Rate | 0.065 | 0.065

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