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Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | Jan. 01, 2021 | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Loans and Leases Receivable, before Fees, Gross |  | $ 2,760,572 | $ 2,201,597
Percentage of Gross Loans with LIBOR Based Reference Rate |  | 15.00% |
Forecast [Member] | Minimum [Member] |  |  |
Operating Lease, Right-of-Use Asset | $ 25,000 |  |
Operating Lease, Liability, Total | 25,000 |  |
Forecast [Member] | Maximum [Member] |  |  |
Operating Lease, Right-of-Use Asset | 30,000 |  |
Operating Lease, Liability, Total | $ 30,000 |  |

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- Definition Represents the total percentage of gross loans which have a LIBOR-based reference rate. + References No definition available. + Details
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- Definition Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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