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Note 7 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Charge-offs |  |
Accruing Troubled Debt Restructuring [Member] |  |
Beginning balance | 65,393 | $ 81,680
New restructurings | 27,683 |
Restructured loans restored to accrual status |  | 10,303
Payments | (4,595) | (1,811)
Restructured loans placed on non-accrual status | (5,822) |
Expiration of loan concession upon renewal | (2,240) |
Ending balance | 80,419 | 90,172
Non-accruing Troubled Debt Restructuring [Member] |  |
Beginning balance | 29,722 | 39,923
New restructurings |  |
Restructured loans restored to accrual status | 5,822 |
Payments | (990) | (6,411)
Restructured loans placed on non-accrual status |  | (10,303)
Ending balance | 32,779 | 23,209
Charge-offs | (1,049) |
Foreclosures | $ (726) |

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- Definition Represents troubled debt restructuring foreclosures. + References No definition available. + Details
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- Definition Represents information about troubled debt restructurings, expiration of loan concession upon renewal. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + 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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X
- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + 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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- Details
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- Details
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