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Fair value estimates - Schedule of Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - Nonrecurring Fair Value Measurements [Member] - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Impaired loans | $ 4,549 | $ 4,944
Other real estate owned | 1,242 | 878
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Impaired loans | 4,549 | 4,944
Other real estate owned | $ 1,242 | $ 878

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- Definition Fair value disclosure of impaired loans at the end of the period. + References No definition available. + Details
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- Definition Fair value disclosure of other real estate owned at the end of the period. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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