Note 3 - Loans and Allowance for Credit Losses - Components of Loan Portfolio (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Loans		$ 4,303,758	$ 3,916,619
Percent of portfolio		100.00%	100.00%
Period increase (decrease)		9.90%
Commercial Portfolio Segment [Member]
Loans		$ 3,415,299	$ 3,131,830
Percent of portfolio		79.40%	80.00%
Period increase (decrease)		9.10%
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans	[1]	$ 1,254,586	$ 1,185,083
Percent of portfolio		29.20%	30.30%
Period increase (decrease)		5.90%
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Loans		$ 74,753	$ 61,873
Percent of portfolio		1.70%	1.60%
Period increase (decrease)		20.80%
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Loans		$ 717,667	$ 639,192
Percent of portfolio		16.70%	16.30%
Period increase (decrease)		12.30%
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Loans	[2]	$ 1,035,684	$ 979,214
Percent of portfolio		24.10%	25.00%
Period increase (decrease)		5.80%
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Loans	[2]	$ 332,609	$ 266,468
Percent of portfolio		7.70%	6.80%
Period increase (decrease)		24.80%
Retail Portfolio Segment [Member]
Loans		$ 888,459	$ 784,789
Percent of portfolio		20.60%	20.00%
Period increase (decrease)		13.20%
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member]
Loans	[3]	$ 837,406	$ 755,036
Percent of portfolio		19.50%	19.30%
Period increase (decrease)		10.90%
Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Loans	[1]	$ 51,053	$ 29,753
Percent of portfolio		1.10%	0.70%
Period increase (decrease)		71.60%

[1] Credit cards to business customers were reclassified from other consumer loans to commercial and industrial during the year ended December 31, 2023. Credit cards to business customers totaled $17.8 million and $16.6 million as of December 31, 2023, and 2022, respectively.

[2] We have reclassified multi-family construction loans from real estate - non-owner occupied loans to real estate - multi-family and residential rental loans. The table above reflects a classification change of $54.5 million as of December 31, 2022. All the tables that follow have been adjusted to reflect the reclassifications as of the applicable dates.

[3] Home equity lines of credit were reclassified from 1-4 family mortgage loans to other consumer loans during the year ended December 31, 2023. Home equity lines of credit totaled $38.1 million and $37.4 million as of December 31, 2023, and 2022, respectively.