Quarterly report pursuant to Section 13 or 15(d)

Regulatory Matters - Capital Ratios of Hanmi Financial and Bank (Detail)

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Regulatory Matters - Capital Ratios of Hanmi Financial and Bank (Detail)
$ in Thousands
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets 0.080  
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets 0.060  
Minimum Regulatory Requirement Ratio for Tier 1 capital to average assets 0.040  
Minimum to Be Categorized as Well Capitalized Ratio, Total capital to risk-weighted assets 0.100  
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to risk-weighted assets 0.080  
Hanmi Financial    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Actual Capital, Total capital to risk-weighted assets $ 958,173 $ 947,286
Actual Capital, Tier 1 capital to risk-weighted assets 781,521 773,179
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 759,752 751,516
Actual Capital, Tier 1 capital to average assets $ 781,521 $ 773,179
Actual Capital Ratio, Total capital to risk-weighted assets 0.152 0.1495
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 0.124 0.122
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 0.1205 0.1186
Actual Capital Ratio, Tier 1 capital to average assets 0.1036 0.1037
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 504,319 $ 506,891
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 378,239 380,168
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 283,680 285,126
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 301,758 $ 298,277
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 $ 914,061 $ 904,153
Actual Capital, Tier 1 capital to risk-weighted assets 847,409 840,046
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 847,409 840,046
Actual Capital, Tier 1 capital to average assets $ 847,409 $ 840,046
Actual Capital Ratio, Total capital to risk-weighted assets 0.145 0.1427
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 0.1344 0.1326
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 0.1344 0.1326
Actual Capital Ratio, Tier 1 capital to average assets 0.1129 0.1132
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 504,340 $ 506,741
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 378,255 380,056
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 283,691 285,042
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 300,334 $ 296,948
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 $ 630,425 $ 633,426
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets 504,340 506,741
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted average 409,776 411,727
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets $ 375,417 $ 371,185
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