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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Number of Reportable Segments	1
Goodwill and Intangible Asset Impairment, Total	$ 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 0	$ 0	$ 0
Minimum [Member] \| Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years
Maximum [Member] \| Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	15 years
Building [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years
Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	39 years
Furniture and Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Furniture and Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Computer Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Computer Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Equity Securities, Held In Correspondent Banks [Member]
Equity Securities, FV-NI, Cost	$ 3,400	2,600
Corporate Stock and Mutual Funds [Member]
Equity Securities, FV-NI, Cost	$ 17,000	$ 16,500