Note 4 - Loans and Allowance for Loan Losses - Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 775,086	$ 772,774
Less: Allowance for loan losses	(8,729)	(6,272)
Loans, net	766,357	766,502
Residential Portfolio Segment [Member]
Loans	307,879	310,253
Commercial Real Estate Portfolio Segment [Member]
Loans	227,548	222,136
Commercial Real Estate Portfolio Segment [Member] \| Commercial Real Estate Owner Occupied [Member]
Loans	55,515	55,825
Commercial Real Estate Portfolio Segment [Member] \| Commercial Real Estate Nonowner Occupied [Member]
Loans	137,141	131,398
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans	34,892	34,913
Commercial and Industrial Portfolio Segment [Member]
Loans	102,570	100,023
Consumer Portfolio Segment [Member]
Loans	137,089	140,362
Consumer Portfolio Segment [Member] \| Automobile Loan [Member]
Loans	61,729	63,770
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans	21,894	22,882
Consumer Portfolio Segment [Member] \| Other Consumer Loans [Member]
Loans	$ 53,466	$ 53,710

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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