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Note 5 - Loans and Allowance for Credit Losses - Troubled Debt Restructurings (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 1,165 | $ 1,171
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 207 | $ 211
Commercial Portfolio Segment [Member] |  |
Number of Contracts | 4 | 4
TDRs Performing to Modified Terms | $ 1,372 | $ 1,382
Income Producing Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 5,143 | $ 5,160
Income Producing Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |
TDRs Performing to Modified Terms |  |
Income Producing Portfolio Segment [Member] |  |
Number of Contracts | 2 | 2
TDRs Performing to Modified Terms | $ 5,143 | $ 5,160
Owner Occupied Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 461 | $ 485
Owner Occupied Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |
TDRs Performing to Modified Terms |  |
Owner Occupied Portfolio Segment [Member] |  |
Number of Contracts | 1 | 1
TDRs Performing to Modified Terms | $ 461 | $ 485
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |
TDRs Performing to Modified Terms |  | $ 5,020
Construction Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 5,013 |
Construction Portfolio Segment [Member] |  |
Number of Contracts | 1 | 1
TDRs Performing to Modified Terms | $ 5,013 | $ 5,020
Performing Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | 6,769 | 11,836
Nonperforming Financial Instruments [Member] |  |
TDRs Performing to Modified Terms | $ 5,220 | $ 211
Number of Contracts | 8 | 8
TDRs Performing to Modified Terms | $ 11,989 | $ 12,047

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- Definition Number of financing receivables outstanding that have been modified by troubled debt restructurings. + References No definition available. + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
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