Note 8 - Loans Receivable, Net - Accrued Interest Writeoff (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Accrued Interest, Writeoff	$ 8,078	$ 13,237
Ending Balance	176,100,000	176,100,000
Unfunded Loan Commitment [Member]
Beginning Balance	1,048,614	0
Reversal of provision for unfunded commitments	60,000	(105,000)
Ending Balance	1,108,614	1,108,614
Unfunded Loan Commitment [Member] \| Accounting Standards Update 2016-13 [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning Balance		1,213,614
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Accrued Interest, Writeoff	0	2,882
Commercial Real Estate Portfolio Segment [Member] \| Residential Mortgage [Member]
Accrued Interest, Writeoff	5,783	6,814
Commercial Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member]
Accrued Interest, Writeoff	1,461	1,461
Commercial and Agricultural Loans [Member]
Accrued Interest, Writeoff	0	1,103
Consumer Portfolio Segment [Member] \| Home Equity Line of Credit [Member]
Accrued Interest, Writeoff	66	66
Consumer Portfolio Segment [Member] \| Other Consumer Loans [Member]
Accrued Interest, Writeoff	$ 768	$ 911

Amount of writeoff of accrued interest on financing receivable recognized by reversing interest income.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3D
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3D

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482454/460-10-45-1

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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