v3.3.1.900

Income taxes (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014
U.S. federal: |  |  |  |  |
Current | $ 27 | $ 6 | $ (402) |  |
Deferred | 319 | 328 | 1,158 |  |
Total U.S. federal | 346 | 334 | 756 |  |
U.S. state and local: |  |  |  |  |
Current | 134 | 226 | 248 |  |
Deferred | 1 | 140 | 457 |  |
Total U.S. state and local | $ 135 | $ 366 | $ 705 |  |
Reconciliation from U.S. federal statutory tax rate to effective income taxes rate |  |  |  |  |
Federal statutory rate (as a percent) | 34.00% | 34.00% | 34.00% |  |
State and local (as a percent) | 4.10% | 4.60% | (5.70%) |  |
Foreign rate differential (as a percent) | (0.50%) | (0.70%) | (3.20%) |  |
Stock options (as a percent) | (1.50%) | (0.50%) | (0.70%) |  |
Non-controlling interests (as a percent) | 0.50% | 1.90% | 15.20% |  |
Valuation allowance (as a percent) | (39.00%) | (45.10%) | (128.50%) |  |
Transaction costs (as a percent) | 0.00% | 0.00% | (6.70%) |  |
Purchase price adjustments (as a percent) | 0.00% | 0.00% | 6.60% |  |
Revaluation of deferred tax assets (as a percent) | 0.00% | 0.00% | 2.80% |  |
Uncertain tax positions (as a percent) | (0.10%) | (0.10%) | (2.90%) |  |
Return to provision (as a percent) | 0.00% | 0.60% | 9.30% |  |
Other (as a percent) | 0.30% | 1.40% | 1.10% |  |
Effective Income Tax Rate Reconciliation, Percent, Total | (2.20%) | (3.90%) | (78.70%) |  |
Deferred tax assets: |  |  |  |  |
Net operating loss carryforwards |  |  |  | $ 16,895 | $ 10,115
Outside basis differences for U.S. partnerships |  |  |  | 6,190 | 3,710
Stock options |  |  |  | 3,882 | 3,348
Deferred revenue |  |  |  | 376 | 648
Deferred compensation |  |  |  | 301 | 144
State taxes |  |  |  | 67 | 45
Other |  |  |  | 1,312 | 1,341
Valuation allowance | $ (12,470) | $ (4,101) | $ (1,669) | (19,548) | (12,470)
Net Deferred Tax Assets |  |  |  | 9,475 | 6,881
Deferred tax liabilities: |  |  |  |  |
Intangible assets |  |  |  | (6,268) | (6,855)
Property and equipment |  |  |  | (6,172) | (2,671)
Net deferred tax liabilities |  |  |  | (12,440) | (9,526)
Net deferred taxes |  |  |  | (2,965) | (2,645)
Net operating loss carryforwards |  |  |  |  |
The tax effected amount of gross unrealized net operating loss carryforwards |  |  |  | 6,933 |
Foreign loss before income taxes | $ 1,381 | 1,251 | 559 |  |
Period of cumulative results for determination of releasing valuation allowance | 3 years |  |  |  |
Changes in the valuation allowance |  |  |  |  |
Balance at the beginning of the period | $ 12,470 | 4,101 | 1,669 |  |
Additions charged to operations | 7,078 | 8,369 | 2,432 |  |
Decrease credited to operations | 0 | 0 | 0 |  |
Balance at the end of the period | $ 19,548 | $ 12,470 | 4,101 |  |
Windfall Tax Benefits from Stock Option Exercises |  |  | $ 55 |  |
United Kingdom |  |  |  |  |
Net operating loss carryforwards |  |  |  |  |
Foreign subsidiary deferred tax asset |  |  |  | 1,528 |
Brazil |  |  |  |  |
Net operating loss carryforwards |  |  |  |  |
Foreign subsidiary deferred tax asset |  |  |  | 476 |
Federal |  |  |  |  |
Net operating loss carryforwards |  |  |  |  |
The tax effected amount of gross unrealized net operating loss carryforwards |  |  |  | 55,278 | 35,555
State |  |  |  |  |
Net operating loss carryforwards |  |  |  |  |
The tax effected amount of gross unrealized net operating loss carryforwards |  |  |  | 68,614 | 55,457
Foreign |  |  |  |  |
Net operating loss carryforwards |  |  |  |  |
The tax effected amount of gross unrealized net operating loss carryforwards |  |  |  | $ 9,042 | $ 7,661

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