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Regulatory Matters - Additional Information (Detail) | Jun. 30, 2020 | Dec. 31, 2019 | Jan. 01, 2019
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Minimum ratio of qualifying total capital to risk-weighted assets | 8.0 |  |
Minimum ratio of Tier 1 capital to risk-weighted assets | 6.0 |  |
Leverage ratio | 4.0 |  |
Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized | 10.0 |  |
Minimum ratio of Tier 1 capital to average assets for well capitalized | 8.0 |  |
Capital conservation buffer (percent) | 4.86% | 5.78% | 2.50%
Hanmi Bank |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Minimum ratio of qualifying total capital to risk-weighted assets | 8.00 | 8.00 |
Minimum ratio of Tier 1 capital to risk-weighted assets | 6.00 | 6.00 |
Leverage ratio | 4.00 | 4.00 |
Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized | 10.00 | 10.00 |
Minimum ratio of Tier 1 capital to average assets for well capitalized | 8.00 | 8.00 |
Capital conservation buffer (percent) | 5.62% | 6.64% |
Depository Institutions |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Leverage ratio | 5.0 |  |

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- Definition Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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