Note 8 - FAIR VALUE - Carrying Values and Estimated Fair Values of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Interest-bearing deposits at financial institutions	$ 72,870	$ 104,919
Securities held to maturity, fair value	696,170	680,279
Securities available for sale, at fair value	290,980	299,655
Derivatives	183,888	187,341
Loans, net	274,816
Subordinated notes	233,170	233,064
Derivatives	211,677	215,735
Fair Value, Inputs, Level 1 | Carrying Value
Cash and due from banks	80,988	97,123
Fair Value, Inputs, Level 1 | Estimated Fair Value
Cash and due from banks	80,988	97,123
Fair Value, Inputs, Level 2 | Carrying Value
Federal funds sold	4,150	35,450
Securities held to maturity, fair value	718,623	683,504
Securities available for sale, at fair value	290,980	299,655
Loans/leases receivable, net	6,532,432	6,425,053
Short-term borrowings	2,700	1,500
FHLB advances	205,000	435,000
Subordinated notes	233,170	233,064
Junior subordinated debentures	48,763	48,731
Fair Value, Inputs, Level 2 | Carrying Value | Non-maturity Deposits
Deposits	5,669,912	5,504,323
Fair Value, Inputs, Level 2 | Carrying Value | Time Deposits
Deposits	1,136,863	1,009,682
Fair Value, Inputs, Level 2 | Carrying Value | Interest rate caps
Derivatives	183,888	187,341
Fair Value, Inputs, Level 2 | Carrying Value | Interest rate swaps
Derivatives	211,677	215,735
Fair Value, Inputs, Level 2 | Carrying Value | Interest-bearing Deposits
Interest-bearing deposits at financial institutions	72,870	104,919
Fair Value, Inputs, Level 2 | Estimated Fair Value
Federal funds sold	4,150	35,450
Securities held to maturity, fair value	696,170	680,279
Securities available for sale, at fair value	290,980	299,655
Loans/leases receivable, net	6,255,402	6,125,433
Short-term borrowings	2,700	1,500
FHLB advances	205,962	437,178
Subordinated notes	239,256	240,235
Junior subordinated debentures	40,567	40,397
Fair Value, Inputs, Level 2 | Estimated Fair Value | Non-maturity Deposits
Deposits	5,669,912	5,504,323
Fair Value, Inputs, Level 2 | Estimated Fair Value | Time Deposits
Deposits	1,129,488	996,746
Fair Value, Inputs, Level 2 | Estimated Fair Value | Interest rate caps
Derivatives	183,888	187,341
Fair Value, Inputs, Level 2 | Estimated Fair Value | Interest rate swaps
Derivatives	211,677	215,735
Fair Value, Inputs, Level 2 | Estimated Fair Value | Interest-bearing Deposits
Interest-bearing deposits at financial institutions	72,870	104,919
Fair Value, Inputs, Level 3 | Carrying Value
Trading	22,258	22,369
Loans/leases receivable, net	31,434	31,163
Fair Value, Inputs, Level 3 | Estimated Fair Value
Trading	22,258	22,369
Loans/leases receivable, net	33,949	33,656
Fair Value, Measurements, Recurring
Derivatives	183,888	187,341
Derivatives	211,677	215,735
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Derivatives	183,888	187,341
Derivatives	211,677	$ 215,735
Fair Value, Measurements, Nonrecurring
Loans, net	274,816
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Loans, net	$ 274,816