Note 4 - Loans - Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 21, 2022	Dec. 31, 2021
Loans, net of deferred fees and costs	$ 2,186,449	$ 2,186,449	$ 1,946,580
90 days past due and still accruing	16		216
Nonaccrual loans	1,307		2,006
Total loans	2,186,449	2,186,449	1,946,580
Financial Asset, 30 to 59 Days Past Due [Member]
Loans, net of deferred fees and costs	1,972		808
Total loans	1,972		808
Financial Asset, 60 to 89 Days Past Due [Member]
Loans, net of deferred fees and costs	358		50
Total loans	358		50
Financial Asset, Past Due [Member]
Loans, net of deferred fees and costs	3,653		3,080
Total loans	3,653		3,080
Financial Asset, Not Past Due [Member]
Loans, net of deferred fees and costs	2,182,796		1,943,500
Total loans	2,182,796		1,943,500
Commercial Portfolio Segment [Member]
Loans, net of deferred fees and costs	304,247	304,247	299,773
90 days past due and still accruing	0		0
Nonaccrual loans	4		26
Total loans	304,247	304,247	299,773
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, net of deferred fees and costs	161		120
Total loans	161		120
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans, net of deferred fees and costs	165		146
Total loans	165		146
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans, net of deferred fees and costs	304,082		299,627
Total loans	304,082		299,627
Commercial Real Estate Portfolio Segment [Member] | Construction and Land Development [Member]
Loans, net of deferred fees and costs	197,525	197,525	134,221
90 days past due and still accruing	0		0
Nonaccrual loans	0		0
Total loans	197,525	197,525	134,221
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	418,462	418,462	391,517
90 days past due and still accruing	0		0
Nonaccrual loans	0		12
Total loans	418,462	418,462	391,517
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	827,728	827,728	731,034
90 days past due and still accruing	0		0
Nonaccrual loans	301		1,093
Total loans	827,728	827,728	731,034
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction and Land Development [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	724		0
Total loans	724		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	319		0
Total loans	319		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction and Land Development [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	268		0
Total loans	268		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Construction and Land Development [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	992		12
Total loans	992		12
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Non-owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	620		1,093
Total loans	620		1,093
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction and Land Development [Member]
Loans, net of deferred fees and costs	197,525		134,221
Total loans	197,525		134,221
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	417,470		391,505
Total loans	417,470		391,505
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-owner Occupied Commercial Real Estate [Member]
Loans, net of deferred fees and costs	827,108		729,941
Total loans	827,108		729,941
Residential Portfolio Segment [Member] | Residential [Member]
Loans, net of deferred fees and costs	338,132	338,132	289,757
90 days past due and still accruing	0		154
Nonaccrual loans	797		792
Total loans	338,132	338,132	289,757
Residential Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Loans, net of deferred fees and costs	93,740	93,740	93,203
90 days past due and still accruing	0		47
Nonaccrual loans	205		80
Total loans	93,740	93,740	93,203
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Residential [Member]
Loans, net of deferred fees and costs	664		670
Total loans	664		670
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans, net of deferred fees and costs	104		12
Total loans	104		12
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Residential [Member]
Loans, net of deferred fees and costs	90		20
Total loans	90		20
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans, net of deferred fees and costs	0		30
Total loans	0		30
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Residential [Member]
Loans, net of deferred fees and costs	1,551		1,636
Total loans	1,551		1,636
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Home Equity Line of Credit [Member]
Loans, net of deferred fees and costs	309		169
Total loans	309		169
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Residential [Member]
Loans, net of deferred fees and costs	336,581		288,121
Total loans	336,581		288,121
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Home Equity Line of Credit [Member]
Loans, net of deferred fees and costs	93,431		93,034
Total loans	93,431		93,034
Consumer Portfolio Segment [Member]
Loans, net of deferred fees and costs	6,615	6,615	7,075
90 days past due and still accruing	16		15
Nonaccrual loans	0		3
Total loans	6,615	$ 6,615	7,075
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans, net of deferred fees and costs	0		6
Total loans	0		6
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans, net of deferred fees and costs	0		0
Total loans	0		0
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans, net of deferred fees and costs	16		24
Total loans	16		24
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans, net of deferred fees and costs	6,599		7,051
Total loans	$ 6,599		$ 7,051