v3.20.4

Income taxes - Foreign operating losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Net operating loss carryforwards |  |  |
Foreign income (loss) before income taxes | $ 400 | $ (28) | $ (577)
United Kingdom |  |  |
Net operating loss carryforwards |  |  |
Foreign subsidiary deferred tax asset | 1,773 |  |
Brazil |  |  |
Net operating loss carryforwards |  |  |
Foreign subsidiary deferred tax asset | $ 967 |  |

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