Note 15 - Regulatory Capital Matters (Details Textual) |
Mar. 31, 2026 |
|---|---|
| Banking Regulation, Capital Conservation Buffer, Capital Conserved, Minimum | 0.025 |
| Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.045 |
| Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.06 |
| Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.08 |
| Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum | 0.04 |
| X | ||||||||||
- Definition Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Ratio of minimum Common Equity Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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