Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Regulatory Matters - Capital Ratios of Hanmi Financial and Bank (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Hanmi Financial [Member]    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Capital conservation buffer (percent) 6.56% 5.86%
Actual Capital, Total capital to risk-weighted assets $ 677,024 $ 554,089
Actual Capital, Tier 1 capital to risk-weighted assets 545,698 520,477
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 530,347 509,239
Actual Capital, Tier 1 capital to average assets $ 545,698 $ 520,477
Actual Capital Ratio, Total capital to risk-weighted assets 15.58% 13.86%
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 12.56% 13.02%
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 12.20% 12.73%
Actual Capital Ratio, Tier 1 capital to average assets 10.92% 11.53%
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 347,757 $ 319,901
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 260,818 239,926
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 195,613 179,944
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 199,818 $ 180,581
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 [Member]    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Capital conservation buffer (percent) 7.32% 5.64%
Actual Capital, Total capital to risk-weighted assets $ 666,298 $ 544,759
Actual Capital, Tier 1 capital to risk-weighted assets 632,891 511,146
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 632,891 511,146
Actual Capital, Tier 1 capital to average assets $ 632,891 $ 511,146
Actual Capital Ratio, Total capital to risk-weighted assets 15.32% 13.64%
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 14.55% 12.80%
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 14.55% 12.80%
Actual Capital Ratio, Tier 1 capital to average assets 12.66% 11.33%
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 347,949 $ 319,520
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 260,962 239,640
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 195,721 179,730
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 199,897 $ 180,411
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 $ 434,936 $ 399,399
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets 347,949 319,520
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted assets 282,709 259,610
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets $ 249,871 $ 225,514
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%