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Regulatory Capital Requirements - Schedule of Capital Ratios (Details) | Dec. 31, 2022 | Dec. 31, 2021
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.128 | 0.135
Tier One Leverage Capital to Average Assets | 0.097 | 0.087
Tier One Risk Based Capital to Risk Weighted Assets | 0.132 | 0.139
Capital to Risk Weighted Assets | 0.140 | 0.148
Banking Regulation, Capital Conservation Buffer [Abstract] | 0.060 | 0.068
Heritage Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.129 | 0.138
Tier One Leverage Capital to Average Assets | 0.094 | 0.086
Tier One Risk Based Capital to Risk Weighted Assets | 0.129 | 0.138
Capital to Risk Weighted Assets | 0.137 | 0.147
Banking Regulation, Capital Conservation Buffer [Abstract] | 0.057 | 0.067

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- Definition Capital conservation buffer percentage calculated as total risk-based capital ratio after deduction of minimum total risk-based capital ratio 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 1 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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- Definition Ratio of total risk-based capital to risk-weighted assets 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 1 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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- Definition Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets 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 1 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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