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
Sep. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets 8.0  
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets 6.0  
Minimum Regulatory Requirement Ratio for Tier 1 capital to average assets 4.0  
Minimum to Be Categorized as Well Capitalized Ratio, Total capital to risk-weighted assets 10.0  
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to risk-weighted assets 8.0  
Hanmi Financial    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Actual Capital, Total capital to risk-weighted assets $ 890,412 $ 743,091
Actual Capital, Tier 1 capital to risk-weighted assets 631,277 583,076
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 610,548 562,647
Actual Capital, Tier 1 capital to average assets $ 631,277 $ 583,076
Actual Capital Ratio, Total capital to risk-weighted assets 17.18 15.21
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 12.18 11.93
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 11.78 11.52
Actual Capital Ratio, Tier 1 capital to average assets 9.50 9.49
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 414,662 $ 390,884
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 310,997 293,163
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 233,248 219,872
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 265,683 $ 245,882
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets 8.00 8.00
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets 6.00 6.00
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 4.00 4.00
Hanmi Bank    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Actual Capital, Total capital to risk-weighted assets $ 786,150 $ 726,532
Actual Capital, Tier 1 capital to risk-weighted assets 721,131 665,058
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 721,131 665,058
Actual Capital, Tier 1 capital to average assets $ 721,131 $ 665,059
Actual Capital Ratio, Total capital to risk-weighted assets 15.17 14.86
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 13.91 13.60
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 13.91 13.60
Actual Capital Ratio, Tier 1 capital to average assets 10.86 10.83
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 414,653 $ 391,114
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 310,990 293,336
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 233,242 220,002
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 265,650 $ 245,736
Minimum Regulatory Requirement Ratio for Total capital to risk-weighted assets 8.00 8.00
Minimum Regulatory Requirement Ratio for Tier 1 capital to risk-weighted assets 6.00 6.00
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 4.00 4.00
Minimum to Be Categorized as Well Capitalized Capital, Total capital to risk-weighted assets $ 518,317 $ 488,893
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets 414,653 391,114
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted average 336,906 317,780
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets $ 332,063 $ 307,170
Minimum to Be Categorized as Well Capitalized Ratio, Total capital to risk-weighted assets 10.00 10.00
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to risk-weighted assets 8.00 8.00
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 5.00 5.00