Note 13 - Fair Value of Financial Instruments - Level 3 Assets Measured at Fair Value (Details) - Measurement Input, Appraised Value [Member]	Mar. 31, 2024	Dec. 31, 2023
Land Held for Sale [Member]
Loans Held for Sale	0.10	0.10
Collateral Dependent Loans [Member] \| Minimum [Member]
Loans Held for Sale	0.10	0.10
Collateral Dependent Loans [Member] \| Maximum [Member]
Loans Held for Sale	0.12	0.12

Value of input used to measure loan, held for sale.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Name:	us-gaap_LoansHeldForSaleMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant