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) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Hanmi Financial [Member]    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Actual Capital, Total capital to risk-weighted assets $ 476,897 $ 493,598
Actual Capital, Tier 1 capital to risk-weighted assets 437,453 454,582
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 437,453  
Actual Capital, Tier 1 capital to average assets $ 437,453 $ 454,582
Actual Capital Ratio, Total capital to risk-weighted assets 15.27% 15.89%
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 14.01% 14.63%
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 14.01%  
Actual Capital Ratio, Tier 1 capital to average assets 11.05% 10.91%
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 249,810 $ 248,501
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 187,357 124,250
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 140,518  
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 158,364 $ 166,600
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% 4.00%
Minimum Regulatory Requirement Ratio for Common equity Tier 1 capital to risk-weighted assets 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]    
Actual Capital, Total capital to risk-weighted assets $ 474,037 $ 470,934
Actual Capital, Tier 1 capital to risk-weighted assets 434,642 431,971
Actual Capital, Common equity Tier 1 capital to risk-weighted assets 434,642  
Actual Capital, Tier 1 capital to average assets $ 434,642 $ 431,971
Actual Capital Ratio, Total capital to risk-weighted assets 15.20% 15.18%
Actual Capital Ratio, Tier 1 capital to risk-weighted assets 13.94% 13.93%
Actual Capital Ratio, Common equity Tier 1 capital to risk-weighted assets 13.94%  
Actual Capital Ratio, Tier 1 capital to average assets 10.99% 10.39%
Minimum Regulatory Requirement Capital, Total capital to risk-weighted assets $ 249,492 $ 248,157
Minimum Regulatory Requirement Capital, Tier 1 capital to risk-weighted assets 187,119 124,078
Minimum Regulatory Requirement Capital, Common equity Tier 1 capital to risk-weighted assets 140,340  
Minimum Regulatory Requirement Capital, Tier 1 capital to average assets $ 158,157 $ 166,332
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% 4.00%
Minimum Regulatory Requirement Ratio for Common equity Tier 1 capital to risk-weighted assets 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 $ 311,866 $ 310,196
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to risk-weighted assets 249,492 186,118
Minimum to Be Categorized as Well Capitalized Capital, Common equity Tier 1 capital to risk-weighted assets 202,713  
Minimum to Be Categorized as Well Capitalized Capital, Tier 1 capital to average assets $ 197,696 $ 207,915
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% 6.00%
Minimum to Be Categorized as Well Capitalized Ratio, Common equity Tier 1 capital to risk-weighted assets 6.50%  
Minimum to Be Categorized as Well Capitalized Ratio, Tier 1 capital to average assets 5.00% 5.00%