Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,140)	$ (1,165)	$ (5,255)	$ (6,046)
Other comprehensive income:
Foreign currency translation adjustments	0	0	0	0
Comprehensive loss	$ (1,140)	$ (1,165)	$ (5,255)	$ (6,046)