Note 3 - Loans - Analysis of the Credit Risk Profile of Each Loan Class (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loans	$ 648,368	$ 574,346
Pass [Member]
Loans	637,080	563,408
Special Mention [Member]
Loans	510	6,069
Substandard [Member]
Loans	10,778	4,869
Doubtful [Member]
Loans	0	0
Real Estate 1 [Member] \| Construction and Land Development [Member]
Loans	27,472	43,164
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Pass [Member]
Loans	27,031	42,636
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Special Mention [Member]
Loans	0	0
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Substandard [Member]
Loans	441	528
Real Estate 1 [Member] \| Construction and Land Development [Member] \| Doubtful [Member]
Loans	0	0
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member]
Loans	234,198	229,438
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Pass [Member]
Loans	232,759	228,029
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Special Mention [Member]
Loans	510	524
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Substandard [Member]
Loans	929	885
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member] \| Doubtful [Member]
Loans	0	0
Real Estate 1 [Member] \| Other Real Estate Loans [Member]
Loans	250,319	236,555
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Pass [Member]
Loans	243,368	233,240
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Special Mention [Member]
Loans	0	537
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Substandard [Member]
Loans	6,951	2,778
Real Estate 1 [Member] \| Other Real Estate Loans [Member] \| Doubtful [Member]
Loans	0	0
Commercial and Industrial Loans [Member]
Loans	125,277	50,153
Commercial and Industrial Loans [Member] \| Pass [Member]
Loans	122,820	48,527
Commercial and Industrial Loans [Member] \| Special Mention [Member]
Loans	0	948
Commercial and Industrial Loans [Member] \| Substandard [Member]
Loans	2,457	678
Commercial and Industrial Loans [Member] \| Doubtful [Member]
Loans	0	0
Consumer and Other Loans [Member]
Loans	11,102	15,036
Consumer and Other Loans [Member] \| Pass [Member]
Loans	11,102	10,976
Consumer and Other Loans [Member] \| Special Mention [Member]
Loans	0	4,060
Consumer and Other Loans [Member] \| Substandard [Member]
Loans	0	0
Consumer and Other Loans [Member] \| Doubtful [Member]
Loans	$ 0	$ 0