Accumulated other comprehensive loss (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Current period accumulated other comprehensive loss	$ (1,047)
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(153)
Current period accumulated other comprehensive loss	(1,047)
Ending Balance	(1,200)
Accumulated other comprehensive loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(153)
Current period accumulated other comprehensive loss	(1,047)
Ending Balance	$ (1,200)