Note 3 - Loans - Summary of Loan Classes and an Aging of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Loans	$ 969,430	$ 920,523
Non-accrual loans	6,763	2,673
Accruing loans past due 90 days or more amounted	524	0
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,832	1,314
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	670	235
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	709	2,337
Financial Asset, Past Due [Member]
Loans	3,211	3,886
Financial Asset, Not Past Due [Member]
Loans	966,219	916,637
Real Estate 1 [Member] \| Construction and Land Development [Member]
Loans	52,680	51,840
Non-accrual loans	38	1,045
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	183	115
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans	4	20
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	38	1,045
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Financial Asset, Past Due [Member]
Loans	225	1,180
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Financial Asset, Not Past Due [Member]
Loans	52,455	50,660
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member]
Loans	344,369	331,421
Non-accrual loans	495	530
Accruing loans past due 90 days or more amounted	245
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,364	1,033
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans	350	60
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	392	207
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Financial Asset, Past Due [Member]
Loans	2,106	1,300
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Financial Asset, Not Past Due [Member]
Loans	342,263	330,121
Real Estate 1 [Member] \| Other Real Estate Loans [Member]
Loans	447,272	418,456
Non-accrual loans	0	13
Accruing loans past due 90 days or more amounted	82
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0	109
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	82	0
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Financial Asset, Past Due [Member]
Loans	82	109
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans	447,190	418,347
Commercial and Industrial Loans [Member]
Loans	113,074	111,225
Non-accrual loans	6,230	1,085
Accruing loans past due 90 days or more amounted	197	0
Commercial and Industrial Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans	252	31
Commercial and Industrial Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans	316	130
Commercial and Industrial Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	197	1,085
Commercial and Industrial Loans [Member] \| Financial Asset, Past Due [Member]
Loans	765	1,246
Commercial and Industrial Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans	112,309	109,979
Consumer and Other Loans [Member]
Loans	12,035	7,581
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	33	26
Consumer and Other Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	25
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	33	51
Consumer and Other Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans	$ 12,002	$ 7,530