Income taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
|
| Income taxes | |||||
| Income tax expense | $ 82 | $ 155 | $ 286 | $ 303 | |
| Effective tax rate (as a percent) | 1.40% | 4.60% | 2.10% | 3.60% | |
| Deferred tax liabilities | $ 2,852 | $ 2,852 | |||
| Uncertain tax positions | 355 | 355 | $ 459 | ||
| Uncertain tax positions, reduction to deferred tax assets | 84 | 84 | 106 | ||
| Accrued interest, net of federal income tax benefits, and penalties | 42 | 42 | $ 67 | ||
| Unrecognized tax benefits that would affect the effective tax rate | 229 | 229 | |||
| Reconciliation of unrecognized tax benefits | |||||
| Beginning balance, January 1, 2015 | 392 | ||||
| Additions for current period tax positions | 0 | ||||
| Effective settlement during the current period | (79) | ||||
| Balance, June 30, 2015 | $ 313 | $ 313 | |||
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. 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 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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- Definition The amount recognized for uncertain tax positions as of the balance sheet date. No definition available.
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- Definition Represents the amount of uncertain tax positions, which is a reduction to deferred tax assets that is presented as net of uncertain tax positions in the accompanying consolidated balance sheets. No definition available.
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