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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 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Securities available-for-sale | $ 1,219,541 | $ 1,127,309
Equity securities | 27,740 | 22,319
Assets, fair value disclosure | 1,287,058 | 1,160,854
Liabilities, fair value disclosure | 23,125 | 12,969
Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 119,748 | 0
Equity securities | 27,740 | 22,319
Assets, fair value disclosure | 147,488 | 22,319
Liabilities, fair value disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 1,099,793 | 1,127,309
Equity securities | 0 | 0
Assets, fair value disclosure | 1,139,546 | 1,138,512
Liabilities, fair value disclosure | 23,125 | 12,969
Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Equity securities | 0 | 0
Assets, fair value disclosure | 24 | 23
Liabilities, fair value disclosure | 0 | 0
US Treasury Securities [Member] |  |
Securities available-for-sale | 119,748 |
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 119,748 |
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 | 83,216 | 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 | 83,216 | 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 | 873,505 | 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 | 873,505 | 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 | 8,388 | 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 | 8,388 | 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 | 134,684 | 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 | 134,684 | 142,018
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Mutual Funds [Member] |  |
Equity securities | 1,857 | 6,230
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Equity securities | 1,857 | 6,230
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Equity securities | 0 | 0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Equity securities | 0 | 0
Preferred Stock of Government Sponsored Entities [Member] |  |
Equity securities | 5,940 | 1,811
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Equity securities | 5,940 | 1,811
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Equity securities | 0 | 0
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Equity securities | 0 | 0
Other Equity Securities [Member] |  |
Equity securities | 19,943 | 14,278
Other Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Equity securities | 19,943 | 14,278
Other Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Equity securities | 0 | 0
Other Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Equity securities | 0 | 0
Warrant [Member] |  |
Assets, fair value disclosure | 24 | 23
Warrant [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets, fair value disclosure | 0 | 0
Warrant [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets, fair value disclosure | 0 | 0
Warrant [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets, fair value disclosure | 24 | 23
Interest Rate Swap [Member] |  |
Assets, fair value disclosure | 38,377 | 10,090
Liabilities, fair value disclosure | 22,983 | 12,642
Interest Rate Swap [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets, fair value disclosure | 0 | 0
Liabilities, fair value disclosure | 0 | 0
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets, fair value disclosure | 38,377 | 10,090
Liabilities, fair value disclosure | 22,983 | 12,642
Interest Rate Swap [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets, fair value disclosure | 0 | 0
Liabilities, fair value disclosure | 0 | 0
Foreign Exchange Contract [Member] |  |
Assets, fair value disclosure | 1,376 | 1,113
Liabilities, fair value disclosure | 142 | 327
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets, fair value disclosure | 0 | 0
Liabilities, fair value disclosure | 0 | 0
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets, fair value disclosure | 1,376 | 1,113
Liabilities, fair value disclosure | 142 | 327
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets, fair value disclosure | 0 | 0
Liabilities, fair value disclosure | $ 0 | $ 0

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