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Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Loans Modified in a Troubled Debt Restructuring $ in Thousands | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Loans Modified in a Troubled Debt Restructuring [Line Items] |  |
Number of Relationships | 2 | 2
Pre-Modification Outstanding Recorded Investment | $ 2,439 | $ 4,730
Number of Relationships | 2 | 1
Post-Modification Outstanding Recorded Investment | $ 2,430 | $ 991
Commercial Real Estate Portfolio Segment [Member] |  |
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Loans Modified in a Troubled Debt Restructuring [Line Items] |  |
Number of Relationships | 2 |
Pre-Modification Outstanding Recorded Investment | $ 2,439 |
Number of Relationships | 2 |
Post-Modification Outstanding Recorded Investment | $ 2,430 |
Construction to Permanent Portfolio Segment [Member] |  |
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Loans Modified in a Troubled Debt Restructuring [Line Items] |  |
Number of Relationships |  | 2
Pre-Modification Outstanding Recorded Investment |  | $ 4,730
Number of Relationships |  | 1
Post-Modification Outstanding Recorded Investment |  | $ 991

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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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