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Note 3 - Loans - Summary of Loan Classes and an Aging of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Loans	$ 989,976	$ 969,430	$ 930,194
Non-accrual loans	8,630	6,763
Accruing loans past due 90 days or more amounted	0	524
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	2,028	1,832
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	620	670
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	2,472	709
Financial Asset, Past Due [Member]
Loans	5,120	3,211
Financial Asset, Not Past Due [Member]
Loans	984,856	966,219
Real Estate 1 [Member] | Construction and Land Development [Member]
Loans	60,919	52,680	49,282
Non-accrual loans	36	38
Accruing loans past due 90 days or more amounted	0	0
Real Estate 1 [Member] | Construction and Land Development [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0	183
Real Estate 1 [Member] | Construction and Land Development [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	4
Real Estate 1 [Member] | Construction and Land Development [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	36	38
Real Estate 1 [Member] | Construction and Land Development [Member] | Financial Asset, Past Due [Member]
Loans	36	225
Real Estate 1 [Member] | Construction and Land Development [Member] | Financial Asset, Not Past Due [Member]
Loans	60,883	52,455
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Loans	346,977	344,369	337,601
Non-accrual loans	749	495
Accruing loans past due 90 days or more amounted	0	245
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,184	1,364
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	219	350
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	248	392
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Financial Asset, Past Due [Member]
Loans	1,651	2,106
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Financial Asset, Not Past Due [Member]
Loans	345,326	342,263
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Loans	449,768	447,272	421,970
Non-accrual loans	0	0
Accruing loans past due 90 days or more amounted	0	82
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	78	0
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	82
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Financial Asset, Past Due [Member]
Loans	78	82
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Loans	449,690	447,190
Commercial and Industrial Loans [Member]
Loans	116,299	113,074	112,803
Non-accrual loans	7,845	6,230
Accruing loans past due 90 days or more amounted	0	197
Commercial and Industrial Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	742	252
Commercial and Industrial Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	401	316
Commercial and Industrial Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	2,188	197
Commercial and Industrial Loans [Member] | Financial Asset, Past Due [Member]
Loans	3,331	765
Commercial and Industrial Loans [Member] | Financial Asset, Not Past Due [Member]
Loans	112,968	112,309
Consumer and Other Loans [Member]
Loans	16,013	12,035	$ 8,538
Non-accrual loans	0	0
Accruing loans past due 90 days or more amounted	0	0
Consumer and Other Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	24	33
Consumer and Other Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Consumer and Other Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Consumer and Other Loans [Member] | Financial Asset, Past Due [Member]
Loans	24	33
Consumer and Other Loans [Member] | Financial Asset, Not Past Due [Member]
Loans	$ 15,989	$ 12,002

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