Note 3 - Debt Securities (Details Textual) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Number of Securities in Unrealized Loss Position		113	23
Percentage of Combined Depreciation of Combined Reported Value of Aggregate Securities Portfolio		6.59%	0.91%
Debt Securities, Available-for-Sale, Realized Gain	$ 419
Debt Securities, Available-for-Sale, Realized Loss	$ 34
Debt Securities, Available-for-Sale, Amortized Cost, Total		$ 320,123	$ 76,273
US Government Agencies Debt Securities [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		1,500	469
US Treasury Securities [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		161,617
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		23,480	28,596
Corporate Debt Securities [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		37,046	9,935
Mortgage-backed Agency Securities [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		96,480	37,273
Asset Pledged as Collateral [Member]
Debt Securities, Available-for-Sale, Amortized Cost, Total		$ 22,430	$ 22,150

Represents the number of securities in unrealized loss position.

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- Definition

Represents the percentage of combined depreciation of combined reported value of aggregate securities portfolio.

+ References

No definition available.

+ Details

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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- Definition

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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