CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (3,726)	$ (3,489)	$ (11,189)	$ (10,263)
Other comprehensive loss
Change in unrealized gain (loss) on investments	0	20	1	(2)
Change in foreign currency translation adjustment, net of income tax	(3)	(34)	(19)	(57)
Total other comprehensive loss	(3)	(14)	(18)	(59)
Comprehensive loss	$ (3,729)	$ (3,503)	$ (11,207)	$ (10,322)