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Regulatory Capital Requirements (Tables) | 9 Months Ended
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Sep. 30, 2023
Regulatory Capital Requirements [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | ​
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​ |  | September 30, 2023 |  | December 31, 2022 |  | Required for Capital Adequacy Purposes |  | Required to be Well Capitalized |
Total Capital (to risk-weighted assets) | ​ | 14.12 | % | 14.37 | % | 8.00 | % | 10.00 | %
Tier 1 Capital (to risk-weighted assets) | ​ | 12.88 | % | 13.29 | % | 6.00 | % | 8.00 | %
Common Equity Tier 1 Capital (to risk-weighted assets) | ​ | 12.88 | % | 13.29 | % | 4.50 | % | 6.50 | %
Tier 1 Capital (to average assets) | ​ | 9.81 | % | 10.01 | % | 4.00 | % | 5.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1B + Details
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