Note 4 - Loans - Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Non-covered loans	$ 2,459,746	$ 2,314,755
Non-covered loans, percent	100.00%	100.00%
Commercial Portfolio Segment [Member]
Non-covered loans	$ 1,651,580	$ 1,533,935
Non-covered loans, percent	67.14%	66.26%
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member]
Non-covered loans	$ 67,088	$ 63,901
Non-covered loans, percent	2.73%	2.76%
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Non-covered loans	$ 279,927	$ 243,983
Non-covered loans, percent	11.38%	10.54%
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member]
Non-covered loans	$ 190,690	$ 191,486
Non-covered loans, percent	7.75%	8.27%
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member]
Non-covered loans	$ 193,950	$ 171,918
Non-covered loans, percent	7.88%	7.43%
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member]
Non-covered loans	$ 893,631	$ 838,458
Non-covered loans, percent	36.33%	36.22%
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Non-covered loans	$ 14,452	$ 13,464
Non-covered loans, percent	0.59%	0.58%
Commercial Portfolio Segment [Member] \| Farmland [Member]
Non-covered loans	$ 11,842	$ 10,725
Non-covered loans, percent	0.48%	0.46%
Consumer Real Estate Portfolio Segment [Member]
Non-covered loans	$ 757,785	$ 720,717
Non-covered loans, percent	30.81%	31.14%
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member]
Non-covered loans	$ 83,739	$ 82,764
Non-covered loans, percent	3.40%	3.58%
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member]
Non-covered loans	$ 668,877	$ 632,348
Non-covered loans, percent	27.19%	27.32%
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member]
Non-covered loans	$ 5,169	$ 5,605
Non-covered loans, percent	0.21%	0.24%
Consumer and Other Portfolio Segment [Member]
Non-covered loans	$ 50,381	$ 60,103
Non-covered loans, percent	2.05%	2.60%
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member]
Non-covered loans	$ 48,271	$ 58,453
Non-covered loans, percent	1.96%	2.53%
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member]
Non-covered loans	$ 2,110	$ 1,650
Non-covered loans, percent	0.09%	0.07%