Income Taxes - Foreign Currency Exchange Rate Fluctuations, Changes in Net Operating Losses and Credit Carryforwards (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Valuation allowance
Net increase in valuation allowance	$ 1,185
State
Operating Loss Carryforwards
Research and development tax credit carryforwards	108
Foreign
Operating Loss Carryforwards
Operating Loss Carryforwards	$ 3,668

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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