Note 22 - Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Securities available for sale, at fair value	$ 361,966	$ 210,695
Derivatives	222,757	87,827
Assets Fair Value	9,948	7,853
Derivatives	229,270	88,437
Interest rate swap
Derivatives	222,431	84,679
Derivatives	222,431	84,679
Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	9,948	7,853
Fair Value, Measurements, Recurring [Member]
Derivatives	222,757	87,827
Assets Fair Value	584,723	298,522
Liabilities Fair Value	229,270	88,437
Fair Value, Measurements, Recurring [Member] \| Interest rate swap
Derivatives	229,270	88,437
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Derivatives	222,757	87,827
Assets Fair Value	584,723	298,522
Liabilities Fair Value	229,270	88,437
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest rate swap
Derivatives	229,270	88,437
U.S. govt. sponsored agency securities
Securities available for sale, at fair value	15,336	20,078
U.S. govt. sponsored agency securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, at fair value	15,336	20,078
U.S. govt. sponsored agency securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	15,336	20,078
Residential mortgage-backed and related securities
Securities available for sale, at fair value	132,842	120,587
Residential mortgage-backed and related securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, at fair value	132,842	120,587
Residential mortgage-backed and related securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	132,842	120,587
Asset-backed securities
Securities available for sale, at fair value	40,683	16,887
Asset-backed securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, at fair value	40,683	16,887
Asset-backed securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	40,683	16,887
Municipal securities
Securities available for sale, at fair value	152,408	48,257
Municipal securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, at fair value	152,408	48,257
Municipal securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	152,408	48,257
Other Securities
Securities available for sale, at fair value	20,697	4,886
Other Securities \| Fair Value, Measurements, Recurring [Member]
Securities available for sale, at fair value	20,697	4,886
Other Securities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value	20,697	4,886
Impaired Loans Leases [Member]
Assets Fair Value	9,926	3,394
Impaired Loans Leases [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	9,926	3,394
Other Real Estate Owned [Member]
Assets Fair Value	22	4,459
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets Fair Value	$ 22	$ 4,459

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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