Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Consolidated Statements of Comprehensive Loss
Net loss	$ (5,091)	$ (5,357)	$ (13,926)	$ (11,299)
Other comprehensive income (loss):
Foreign currency translation adjustments	31	(547)	356	(49)
Other comprehensive income (loss):	31	(547)	356	(49)
Comprehensive loss	$ (5,060)	$ (5,904)	$ (13,570)	$ (11,348)