Note 5 - Loans and ACL for Loans - Non-accrual Loans (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Non-accrual with no allowance		$ 2,295	$ 2,375
Non-accrual loans		14,242	6,712
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	12
Past due 90-days-or-more and still accruing interest		892	684
Home Equity Line of Credit [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		205	646
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		0	0
Credit Cards [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		0	0
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		7	0
Commercial Real Estate Portfolio Segment [Member]
Non-accrual with no allowance		1,370	1,151
Non-accrual loans		10,232	2,468
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		78	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Non-accrual with no allowance		0	486
Non-accrual loans		7,707	720
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		78	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Non-accrual with no allowance		1,370	665
Non-accrual loans		2,525	1,748
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		0	0
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Non-accrual with no allowance		403	419
Non-accrual loans		1,182	670
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	12
Past due 90-days-or-more and still accruing interest		259	0
Commercial and Industrial Portfolio Segment [Member] | PPP Loans [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		21	0
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		28	592
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Non-accrual with no allowance		273	0
Non-accrual loans		348	228
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		300	56
Total Commercial and Industrial Portfolio Segment [Member]
Non-accrual with no allowance		676	419
Non-accrual loans		1,551	898
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	12
Past due 90-days-or-more and still accruing interest		587	648
Residential Real Estate Portfolio Segment [Member]
Non-accrual with no allowance		249	805
Non-accrual loans		2,020	2,290
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		220	36
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		219	293
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		220	0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Non-accrual with no allowance		249	805
Non-accrual loans		1,801	1,997
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		0	36
Construction and Development [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		0	0
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		0	0
Consumer Portfolio Segment [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		234	410
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		0	0
Finance Leases Portfolio Segment [Member]
Non-accrual with no allowance		0	0
Non-accrual loans		0	0
Troubled Debt Restructurings, excluding non-accrual loans	[1]	0	0
Past due 90-days-or-more and still accruing interest		$ 0	$ 0

[1] Does not included TDRs captured in the non-accrual column.