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Note 13 - Assets and Liabilities Measured and Reported at Fair Value - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Securities available-for-sale | $ 1,140,039 | $ 1,180,298
Derivative | 6,475 | 3,148
US Treasury Securities and US Government Agencies Debt Securities [Member] |  |
Securities available-for-sale | 115,532 | 122,501
US Government-sponsored Enterprises Debt Securities [Member] |  |
Securities available-for-sale | 117,703 | 135,021
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Securities available-for-sale | 765,522 | 846,624
US States and Political Subdivisions Debt Securities [Member] |  |
Securities available-for-sale | 135,268 | 75,075
Other Debt Obligations [Member] |  |
Securities available-for-sale | 6,014 | 1,077
Fair Value, Recurring [Member] |  |
Securities available-for-sale | 1,140,039 | 1,180,298
Mortgage loans held for sale | 10,045 |
Interest rate swaps | 6,475 | 3,148
Total assets | 1,157,075 | 1,183,446
Interest rate swaps | 6,487 | 3,162
Fair Value, Recurring [Member] | Rate Lock Loan Commitments [Member] |  |
Derivative | 472 |
Fair Value, Recurring [Member] | Mandatory Forward Contract [Member] |  |
Derivative | 44 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 115,532 | 122,501
Mortgage loans held for sale | 0 |
Interest rate swaps | 0 | 0
Total assets | 115,532 | 122,501
Interest rate swaps | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Rate Lock Loan Commitments [Member] |  |
Derivative | 0 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mandatory Forward Contract [Member] |  |
Derivative | 0 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 1,024,507 | 1,057,797
Mortgage loans held for sale | 10,045 |
Interest rate swaps | 6,475 | 3,148
Total assets | 1,041,543 | 1,060,945
Interest rate swaps | 6,487 | 3,162
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Rate Lock Loan Commitments [Member] |  |
Derivative | 472 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mandatory Forward Contract [Member] |  |
Derivative | 44 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Mortgage loans held for sale | 0 |
Interest rate swaps | 0 | 0
Total assets | 0 | 0
Interest rate swaps | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Rate Lock Loan Commitments [Member] |  |
Derivative | 0 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mandatory Forward Contract [Member] |  |
Derivative | 0 |
Fair Value, Recurring [Member] | US Treasury and Government [Member] |  |
Securities available-for-sale | 115,532 |
Fair Value, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 115,532 |
Fair Value, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 0 |
Fair Value, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 |
Fair Value, Recurring [Member] | US Treasury Securities and US Government Agencies Debt Securities [Member] |  |
Securities available-for-sale |  | 122,501
Fair Value, Recurring [Member] | US Treasury Securities and US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale |  | 122,501
Fair Value, Recurring [Member] | US Treasury Securities and US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale |  | 0
Fair Value, Recurring [Member] | US Treasury Securities and US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale |  | 0
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] |  |
Securities available-for-sale | 117,703 | 135,021
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 117,703 | 135,021
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Securities available-for-sale | 765,522 | 846,624
Fair Value, Recurring [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 765,522 | 846,624
Fair Value, Recurring [Member] | Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] |  |
Securities available-for-sale | 135,268 | 75,075
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 135,268 | 75,075
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | Other Debt Obligations [Member] |  |
Securities available-for-sale | 6,014 | 1,077
Fair Value, Recurring [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Securities available-for-sale | 0 | 0
Fair Value, Recurring [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Securities available-for-sale | 6,014 | 1,077
Fair Value, Recurring [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Securities available-for-sale | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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