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Note 1 - Summary of Significant Accounting Policies (Details Textual)	Dec. 01, 2022 USD ($) shares	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022
Servicing Asset at Fair Value, Amount		$ 197,400,000		$ 210,300,000
Mortgage Loans in Process of Foreclosure, Amount		$ 352,000		$ 228,000
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		10 years		10 years
Minimum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Minimum [Member] | Building and Building Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life (Year)		20 years
Maximum [Member] | Building and Building Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)		40 years
Commercial Portfolio Segment [Member] | Minimum [Member]
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process		$ 250,000	$ 150,000
LBSI Insurance, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired					100.00%
Liberty Bancshares Inc [Member]
Business Combination, Amount Shares Issued to Acquiree's Shareholders Per Share (in shares) | shares	2.752
Stock Issued During Period, Shares, Acquisitions (in shares) | shares	2,561,513
Business Combination, Consideration Transferred, Total	$ 73,300,000
Number of Branches	6

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