Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,278)	$ 1,045	$ (3,512)	$ (924)
Other comprehensive income (loss):
Foreign currency translation adjustments	(337)	(263)	(276)	(441)
Unrealized losses from marketable securities, net of tax	0	0	0	(3)
Total other comprehensive income (loss)	(337)	(263)	(276)	(444)
Comprehensive income (loss)	$ (1,615)	$ 782	$ (3,788)	$ (1,368)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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