v3.2.0.727

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 |  |

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