Note 6 - Capital Standards (Details Textual)	Jun. 30, 2025	Dec. 31, 2024
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum	0.065	0.065
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum	0.08	0.08
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum	0.10	0.10
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum	0.05	0.05

Ratio of minimum Common Equity Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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/1943274/2147477270/942-505-50-1

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