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Note 4 - Credit Quality (Details Textual) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Percentage of Loan Loss Covered by FDIC | 80.00% |  |
Financing Receivable, Collectively Evaluated for Impairment | $ 1,801,111 |  | $ 1,814,437
Financing Receivable, Modifications, Recorded Investment | 9,759 |  | 14,236
Restructured Loans, Reserves | 250 |  |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 0 | $ 0 |
Impaired Loans [Member] |  |  |
Financing Receivable, Collectively Evaluated for Impairment | 20,070 |  | 16,890
Non-covered Loans [Member] |  |  |
Financing Receivable, Modifications, Recorded Investment |  |  | 0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing | 0 |  |
Covered Loans [Member] |  |  |
Financing Receivable, Modifications, Recorded Investment | $ 0 |  | $ 0

X
- Definition Represents the percentage of loan covered by the FDIC. + References No definition available. + Details
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- Definition Represents the amount of reserves for restructured loans. + References No definition available. + Details
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X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Details
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