Financial Income and Expenses - Financial income (expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Income and Expenses [Abstract]
Financial income from cash equivalents	$ 108	$ 442	$ 551	$ 1,227
Interest and fees	(677)	(454)	(1,920)	(1,458)
Interest on debt	(437)	(421)	(1,455)	(1,294)
Fees	(240)	(33)	(465)	(164)
Foreign exchange gain (loss)	107	(869)	(389)	(3,556)
Other financial expense	(29)	(19)	(70)	(441)
Total financial income (expense)	$ (491)	$ (900)	$ (1,828)	$ (4,228)