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Note 12 - Regulatory and Operational Matters (Details Textual) $ in Billions | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2019 USD ($)
--- | --- | --- | ---
Community Bank, Tier One Leverage Ratio |  |  | 0.09
Community Bank, Tier One Leverage Capital Required for Capital Adequacy |  |  | $ 10
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.0994 | 0.0986 |

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- Definition Represents tier one capital required for capital adequacy for community bank. + References No definition available. + Details
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- Definition Represents tier one leverage ratio for community bank. + References No definition available. + Details
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- Definition Ratio of Tier 1 capital to average 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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