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Note 5 - Credit Quality - Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands		3 Months Ended	9 Months Ended
		Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
TDRs				$ 8,436
Loans modified	[1]	$ 72	$ 349
Total contracts		1	4
Pre-modification recorded investment		$ 94	$ 362
Financial Asset, Not Past Due [Member]
Loans modified		1,412
Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified		262
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified		0
Non-farm, Non-residential [Member] | Financial Asset, Not Past Due [Member]
Loans modified		661
Non-farm, Non-residential [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified		0
Non-farm, Non-residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified		0
Single Family Owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Loans modified		744
Single Family Owner Occupied [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified		262
Single Family Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified		0
Consumer Loans [Member] | Financial Asset, Not Past Due [Member]
Loans modified		7
Consumer Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member]
Loans modified		0
Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans modified		0
Payment Deferral [Member]
TDRs		1,223	1,223
Payment Deferral [Member] | Non-farm, Non-residential [Member]
TDRs		661	$ 661
Percentage of total financing receivable			0.07%
Payment Deferral [Member] | Single Family Owner Occupied [Member]
TDRs		562	$ 562
Percentage of total financing receivable			0.08%
Below Market Interest Rate [Member]
Loans modified			$ 32
Total contracts			1
Pre-modification recorded investment			$ 31
Below Market Interest Rate [Member] | Single Family Owner Occupied [Member]
Loans modified	[1]	$ 72	$ 32
Total contracts		1	1
Pre-modification recorded investment		$ 94	$ 31
Below Market Interest Rate and Extended Payment Term [Member]
Loans modified	[1]		$ 317
Total contracts			3
Pre-modification recorded investment			$ 331
Below Market Interest Rate and Extended Payment Term [Member] | Single Family Non-owner Occupied [Member]
Loans modified	[1]		$ 317
Total contracts			3
Pre-modification recorded investment			$ 331
Extended Maturity [Member]
TDRs		7	7
Extended Maturity [Member] | Consumer Loans [Member]
TDRs		7	$ 7
Percentage of total financing receivable			0.01%
Extended Maturity [Member] | Consumer Loans [Member] | Minimum [Member]
Extended term (Month)			60 months
Extended Maturity [Member] | Consumer Loans [Member] | Maximum [Member]
Extended term (Month)			84 months
Principal Forgiveness [Member]
TDRs		7	$ 7
Principal Forgiveness [Member] | Consumer Loans [Member]
TDRs		7	$ 7
Percentage of total financing receivable			0.00%
Reduction			$ 13
Term Extension and Rate Reduction [Member]
TDRs		437	437
Term Extension and Rate Reduction [Member] | Single Family Owner Occupied [Member]
TDRs		$ 437	$ 437
Percentage of total financing receivable			0.06%
[1] Represents the loan balance immediately following modification

X

- Definition

Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

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