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Note 4 - Credit Quality - Loans Modified as Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Financial Asset, Not Past Due [Member]
Loans modified	$ 1,749	$ 1,921
Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	322	204
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	58	135
Non-farm, Non-residential [Member] | Financial Asset, Not Past Due [Member]
Loans modified	250	625
Non-farm, Non-residential [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0	0
Non-farm, Non-residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0	0
Single Family Owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Loans modified	1,268	1,140
Single Family Owner Occupied [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	322	174
Single Family Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	58	0
Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member]
Loans modified	35	144
Commercial and Industrial [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0	0
Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0	135
Consumer Loans [Member] | Financial Asset, Not Past Due [Member]
Loans modified	7	10
Consumer Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0	0
Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0	0
Single Family Non-owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Loans modified	24	0
Single Family Non-owner Occupied [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0	30
Single Family Non-owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0	0
Home Equity Lines [Member] | Financial Asset, Not Past Due [Member]
Loans modified	1	2
Home Equity Lines [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0
Home Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0
Agricultural [Member] | Financial Asset, Not Past Due [Member]
Loans modified	164
Agricultural [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified	0
Agricultural [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified	0
Payment Deferral [Member]
Amortized cost basis	926	1,299
Payment Deferral [Member] | Non-farm, Non-residential [Member]
Amortized cost basis	$ 250	$ 625
Percentage of total financing receivable	0.03%	0.07%
Delayed period (Month)	6 months	6 months
Payment Deferral [Member] | Single Family Owner Occupied [Member]
Amortized cost basis	$ 488	$ 509
Percentage of total financing receivable	0.08%	0.08%
Deferred principal	$ 66	$ 66
Payment Deferral [Member] | Commercial and Industrial [Member]
Amortized cost basis	$ 35	$ 135
Percentage of total financing receivable	0.01%	0.06%
Delayed period (Month)	2 years
Deferred principal		$ 8
Payment Deferral [Member] | Single Family Non-owner Occupied [Member]
Amortized cost basis	$ 24	$ 30
Percentage of total financing receivable	0.01%	0.02%
Delayed period (Month)	6 months	6 months
Payment Deferral [Member] | Home Equity Lines [Member]
Amortized cost basis	$ 1
Percentage of total financing receivable	0.00%
Delayed period (Month)	2 years
Payment Deferral [Member] | Agricultural [Member]
Amortized cost basis	$ 164
Percentage of total financing receivable	1.17%
Delayed period (Month)	6 months
Extended Maturity [Member]
Amortized cost basis	$ 107	$ 148
Extended Maturity [Member] | Single Family Owner Occupied [Member]
Amortized cost basis	$ 70
Percentage of total financing receivable	0.01%
Extended term (Year)	10 years 6 months
Extended Maturity [Member] | Commercial and Industrial [Member]
Amortized cost basis		$ 144
Percentage of total financing receivable		0.06%
Delayed period (Month)		2 years
Extended Maturity [Member] | Consumer Loans [Member]
Amortized cost basis	$ 1	$ 2
Percentage of total financing receivable	0.00%	0.00%
Extended Maturity [Member] | Consumer Loans [Member] | Minimum [Member]
Extended term (Year)	60 months	60 months
Extended Maturity [Member] | Consumer Loans [Member] | Maximum [Member]
Extended term (Year)	84 months	84 months
Extended Maturity [Member] | Home Equity Lines [Member]
Amortized cost basis		$ 2
Percentage of total financing receivable		0.00%
Delayed period (Month)		2 years
Term Extension and Rate Reduction [Member]
Amortized cost basis	$ 1,005	$ 813
Term Extension and Rate Reduction [Member] | Single Family Owner Occupied 1 [Member]
Amortized cost basis	$ 999	$ 806
Percentage of total financing receivable	0.16%	0.12%
Extended term (Year)	10 months	10 months
Term Extension and Rate Reduction [Member] | Consumer Loans [Member]
Amortized cost basis	$ 6	$ 7
Percentage of total financing receivable	0.01%	0.01%
Interest rate after modification	10.50%	10.50%
Contractual Interest Rate Reduction [Member]
Amortized cost basis	$ 91
Contractual Interest Rate Reduction [Member] | Single Family Owner Occupied 1 [Member]
Amortized cost basis	$ 91
Percentage of total financing receivable	0.01%
Extended term (Year)	3 years 1 month 24 days
Interest rate after modification	1.95%

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+ References

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+ References

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+ References

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