Consolidated Statements of Comprehensive Earnings (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net earnings (loss)	$ (187)	$ 4,014	$ 951	$ 4,395
Foreign currency translation adjustments	59	(120)	(24)	(82)
Comprehensive earnings (loss)	$ (128)	$ 3,894	$ 927	$ 4,313