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Regulatory Matters - Capital Ratios of Hanmi Financial and Bank (Detail) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets | 0.0800 |
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets | 0.0600 |
Minimum Regulatory Requirement Ratio for Tier 1 capital to average assets | 0.0400 |
Minimum to Be Categorized as Well Capitalized Ratio, Total capital to risk-weighted assets | 0.1000 |
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to risk-weighted assets | 0.0800 |
Hanmi Financial |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Actual Capital, Total capital to risk-weighted assets | $ 947,286 | $ 901,239
Actual Capital, Tier 1 capital to risk-weighted assets | 773,179 | 728,344
Actual Capital, Common equity Tier 1 capital to risk-weighted assets | 751,516 | 707,101
Actual Capital, Tier 1 capital to average assets | $ 773,179 | $ 728,344
Actual Capital Ratio, Total capital to risk-weighted assets | 0.1495 | 0.1449
Actual Capital Ratio, Tier 1 capital to risk-weighted assets | 0.122 | 0.1171
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets | 0.1186 | 0.1137
Actual Capital Ratio, Tier 1 capital to average assets | 0.1037 | 0.1007
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets | $ 506,891 | $ 497,508
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets | 380,168 | 373,131
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets | 285,126 | 279,848
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets | $ 298,277 | $ 289,311
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets | 0.08 | 0.08
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets | 0.06 | 0.06
Minimum Regulatory Requirement Ratio for Common equity Tier 1 capital to risk-weighted assets | 4.50% | 4.50%
Minimum Regulatory Requirement Ratio for Tier 1 capital to average assets | 0.04 | 0.04
Hanmi Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Actual Capital, Total capital to risk-weighted assets | $ 904,153 | $ 860,503
Actual Capital, Tier 1 capital to risk-weighted assets | 840,046 | 797,608
Actual Capital, Common equity Tier 1 capital to risk-weighted assets | 840,046 | 797,608
Actual Capital, Tier 1 capital to average assets | $ 840,046 | $ 797,608
Actual Capital Ratio, Total capital to risk-weighted assets | 0.1427 | 0.1386
Actual Capital Ratio, Tier 1 capital to risk-weighted assets | 0.1326 | 0.1285
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets | 0.1326 | 0.1285
Actual Capital Ratio, Tier 1 capital to average assets | 0.1132 | 0.1107
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets | $ 506,741 | $ 496,607
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets | 380,056 | 372,455
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets | 285,042 | 279,341
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets | $ 296,948 | $ 288,110
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets | 0.08 | 0.08
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets | 0.06 | 0.06
Minimum Regulatory Requirement Ratio for Common equity Tier 1 capital to risk-weighted assets | 4.50% | 4.50%
Minimum Regulatory Requirement Ratio for Tier 1 capital to average assets | 0.04 | 0.04
Minimum to Be Categorized as Well Capitalized Capital, Total capital to risk-weighted assets | $ 633,426 | $ 620,758
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets | 506,741 | 496,607
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted average | 411,727 | 403,493
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets | $ 371,185 | $ 360,137
Minimum to Be Categorized as Well Capitalized Ratio, Total capital to risk-weighted assets | 0.10 | 0.10
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to risk-weighted assets | 0.08 | 0.08
Minimum to Be Categorized as Well Capitalized Ratio, Common equity Tier 1 capital to risk-weighted assets | 6.50% | 6.50%
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to average assets | 0.05 | 0.05

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