Note 13 - Fair Value Measurements and Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Securities available-for-sale	$ 1,414,411	$ 1,127,309
Equity securities	23,123	22,319
Assets, fair value disclosure	1,536,830	1,160,854
Liabilities, fair value disclosure	56,497	12,969
Mutual Funds [Member]
Equity securities	5,497	6,230
Preferred Stock of Government Sponsored Entities [Member]
Equity securities	2,110	1,811
Other Equity Securities [Member]
Equity securities	15,516	14,278
Warrant [Member]
Assets, fair value disclosure	46	23
Interest Rate Swap [Member]
Assets, fair value disclosure	98,498	10,090
Liabilities, fair value disclosure	54,443	12,642
Foreign Exchange Contract [Member]
Assets, fair value disclosure	752	1,113
Liabilities, fair value disclosure	2,054	327
Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	241,400	0
Equity securities	23,123	22,319
Assets, fair value disclosure	264,523	22,319
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] \| Mutual Funds [Member]
Equity securities	5,497	6,230
Fair Value, Inputs, Level 1 [Member] \| Preferred Stock of Government Sponsored Entities [Member]
Equity securities	2,110	1,811
Fair Value, Inputs, Level 1 [Member] \| Other Equity Securities [Member]
Equity securities	15,516	14,278
Fair Value, Inputs, Level 1 [Member] \| Warrant [Member]
Assets, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] \| Interest Rate Swap [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] \| Foreign Exchange Contract [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	1,173,011	1,127,309
Equity securities	0	0
Assets, fair value disclosure	1,272,261	1,138,512
Liabilities, fair value disclosure	56,497	12,969
Fair Value, Inputs, Level 2 [Member] \| Mutual Funds [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] \| Preferred Stock of Government Sponsored Entities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] \| Other Equity Securities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] \| Warrant [Member]
Assets, fair value disclosure	0	0
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Assets, fair value disclosure	98,498	10,090
Liabilities, fair value disclosure	54,443	12,642
Fair Value, Inputs, Level 2 [Member] \| Foreign Exchange Contract [Member]
Assets, fair value disclosure	752	1,113
Liabilities, fair value disclosure	2,054	327
Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Equity securities	0	0
Assets, fair value disclosure	46	23
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 3 [Member] \| Mutual Funds [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Preferred Stock of Government Sponsored Entities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Other Equity Securities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] \| Warrant [Member]
Assets, fair value disclosure	46	23
Fair Value, Inputs, Level 3 [Member] \| Interest Rate Swap [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 3 [Member] \| Foreign Exchange Contract [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
US Treasury Securities [Member]
Securities available-for-sale	241,400
US Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	241,400
US Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	0
US Treasury Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0
US Government Corporations and Agencies Securities [Member]
Securities available-for-sale	69,112	87,509
US Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
US Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	69,112	87,509
US Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Commercial Mortgage-Backed Securities [Member]
Securities available-for-sale	861,488	888,665
Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	861,488	888,665
Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Collateralized Mortgage Obligations [Member]
Securities available-for-sale	31,709	9,117
Collateralized Mortgage Obligations [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Collateralized Mortgage Obligations [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	31,709	9,117
Collateralized Mortgage Obligations [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Corporate Debt Securities [Member]
Securities available-for-sale	210,702	142,018
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	210,702	142,018
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	$ 0	$ 0

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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-Topic 820
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-Section 50
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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