Note 4 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Beginning balance	$ 5,678	$ 3,788
Provision for loan losses	850	1,980
Loans charged-off	(148)	(146)
Recoveries	91	56
Individually evaluated for impairment	4	34
Total ending allowance balance	6,471	5,678
Loans individually evaluated for impairment	1,954	1,923
Total ending loans balance	567,611	544,797
Financial Asset Acquired [Member]
Collectively evaluated for impairment	160	197
Loans collectively evaluated for impairment	35,227	48,969
Financial Asset Originated [Member]
Collectively evaluated for impairment	6,307	5,447
Loans collectively evaluated for impairment	530,430	493,905
Commercial Portfolio Segment [Member]
Beginning balance	947	660
Provision for loan losses	(21)	287
Loans charged-off	(22)
Recoveries
Individually evaluated for impairment	1	28
Total ending allowance balance	904	947
Loans individually evaluated for impairment	437	179
Total ending loans balance	110,287	157,328
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment
Loans collectively evaluated for impairment	834	1,095
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	903	919
Loans collectively evaluated for impairment	109,016	156,054
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	3,623	2,575
Provision for loan losses	322	1,044
Loans charged-off
Recoveries	4	4
Individually evaluated for impairment		6
Total ending allowance balance	3,949	3,623
Loans individually evaluated for impairment	921	1,045
Total ending loans balance	280,026	245,957
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	83	103
Loans collectively evaluated for impairment	6,542	8,072
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	3,866	3,514
Loans collectively evaluated for impairment	272,563	236,840
Residential Portfolio Segment [Member]
Beginning balance	989	494
Provision for loan losses	319	497
Loans charged-off	(4)	(6)
Recoveries	3	4
Individually evaluated for impairment	3
Total ending allowance balance	1,307	989
Loans individually evaluated for impairment	596	699
Total ending loans balance	147,648	120,119
Residential Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment	77	94
Loans collectively evaluated for impairment	21,363	27,252
Residential Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	1,227	895
Loans collectively evaluated for impairment	125,689	92,168
Consumer Portfolio Segment [Member]
Beginning balance	119	59
Provision for loan losses	230	152
Loans charged-off	(122)	(140)
Recoveries	84	48
Individually evaluated for impairment
Total ending allowance balance	311	119
Loans individually evaluated for impairment
Total ending loans balance	29,650	21,393
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Collectively evaluated for impairment
Loans collectively evaluated for impairment	6,488	12,550
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Collectively evaluated for impairment	311	119
Loans collectively evaluated for impairment	$ 23,162	$ 8,843

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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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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Amount, before allowance for credit loss, of financing receivable.

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Amount of expense related to estimated loss from loan and lease transactions.

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