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Note 4 - Loans - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Nonaccrual, no allowance	$ 1,288	$ 2,789
Nonaccrual, with allowance	33,790	17,814
Nonaccrual over 89 days and accruing	116	615
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Nonaccrual, no allowance	0	0
Nonaccrual, with allowance	224	937
Nonaccrual over 89 days and accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member]
Nonaccrual, no allowance	0	0
Nonaccrual, with allowance	18,619	8,105
Nonaccrual over 89 days and accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Farmland [Member]
Nonaccrual, no allowance	0	1,757
Nonaccrual, with allowance	47	3
Nonaccrual over 89 days and accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member]
Nonaccrual, no allowance	0	0
Nonaccrual, with allowance	8,390	0
Nonaccrual over 89 days and accruing	0	525
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Nonaccrual, no allowance	54	145
Nonaccrual, with allowance	2,986	3,713
Nonaccrual over 89 days and accruing	82	0
Commercial Portfolio Segment [Member] | Agricultural [Member]
Nonaccrual, no allowance	0	177
Nonaccrual, with allowance	158	183
Nonaccrual over 89 days and accruing	0	0
Residential Portfolio Segment [Member] | 1-4 Family Residential [Member]
Nonaccrual, no allowance	1,029	513
Nonaccrual, with allowance	2,379	3,967
Nonaccrual over 89 days and accruing	34	90
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Nonaccrual, no allowance	171	94
Nonaccrual, with allowance	450	409
Nonaccrual over 89 days and accruing	0	0
Consumer Portfolio Segment [Member] | Other Loans [Member]
Nonaccrual, no allowance	0	0
Nonaccrual, with allowance	0	0
Nonaccrual over 89 days and accruing	0	0
Consumer Portfolio Segment [Member] | Indirect Loans [Member]
Nonaccrual, no allowance	34	37
Nonaccrual, with allowance	502	463
Nonaccrual over 89 days and accruing	0	0
Consumer Portfolio Segment [Member] | Direct Loans [Member]
Nonaccrual, no allowance	0	66
Nonaccrual, with allowance	35	34
Nonaccrual over 89 days and accruing	$ 0	$ 0

X

- Definition

Amortized cost of financing receivable on nonaccrual status with allowance for credit loss. Excludes net investment in lease.

+ References

No definition available.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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