Income Taxes - Uncertain tax positions (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2015 |
Dec. 31, 2014 |
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| A reconciliation of the beginning and ending liability for uncertain tax positions | ||
| Balance at beginning of year | $ 592 | $ 336 |
| Increase Resulting from Current Period Tax Positions | 27 | 248 |
| Increases for tax position taken in prior years | 16 | 8 |
| Balance at the end of year | 635 | 592 |
| Unrecognized tax benefits that would affect the effective tax rate, if recognized | 388 | |
| Accrued interest and penalties reported as income tax liability | $ 110 | $ 100 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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