Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 477	$ 687	$ 2,979	$ 3,431
Other comprehensive income (loss):
Foreign currency translation adjustment	(335)	133	(518)	100
Total comprehensive income	$ 142	$ 820	$ 2,461	$ 3,531