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Note 5 - Loans and Allowance for Credit Losses (Details) - Troubled Debt Restructurings $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) | Dec. 31, 2014 USD ($)
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | 7 | 6
TDRs | $ 13,871 | $ 13,729
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | 2 | 1
TDRs | $ 491 | $ 227
Income Producing Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | 3 | 3
TDRs | $ 7,790 | $ 7,849
Owner Occupied Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | 1 | 1
TDRs | $ 534 | $ 565
Construction Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | 1 | 1
TDRs | $ 5,056 | $ 5,088
Performing Financial Instruments [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 13,652 | 13,502
Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 272 |
Performing Financial Instruments [Member] | Income Producing Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 7,790 | 7,849
Performing Financial Instruments [Member] | Owner Occupied Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 534 | 565
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 5,056 | 5,088
Nonperforming Financial Instruments [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | 219 | 227
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
TDRs | $ 219 | $ 227

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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=49124121&loc=SL6953676-111524 + Details
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