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
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
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 $ 717,493 $ 714,288
Actual Capital, Tier 1 capital to risk-weighted assets 554,813 556,820
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 534,582 536,781
Actual Capital, Tier 1 capital to average assets $ 554,813 $ 556,820
Actual Capital Ratio, Total capital to risk-weighted assets 14.04 15.11
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 10.86 11.78
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 10.46 11.36
Actual Capital Ratio, Tier 1 capital to average assets 9.69 10.15
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 408,870 $ 378,059
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 306,652 283,544
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 229,989 212,658
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 229,116 $ 219,367
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 $ 695,899 $ 691,024
Actual Capital, Tier 1 capital to risk-weighted assets 631,681 631,978
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 631,681 631,978
Actual Capital, Tier 1 capital to average assets $ 631,681 $ 631,978
Actual Capital Ratio, Total capital to risk-weighted assets 13.62 14.64
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 12.36 13.39
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 12.36 13.39
Actual Capital Ratio, Tier 1 capital to average assets 11.03 11.56
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 408,716 $ 377,516
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 306,537 283,137
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 229,903 212,353
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 229,017 $ 218,748
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 $ 510,895 $ 471,895
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets 408,716 377,516
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted average 332,082 306,732
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets $ 286,271 $ 273,435
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