CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,067	$ (72)	$ 1,634	$ 809
Other comprehensive income, before tax:
Foreign currency translation adjustments	(50)	157	(252)	587
Unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses)	3	0	(33)	31
Reclassification adjustment for gains included in net income	(3)	0	(3)	0
Total unrealized gains (losses) on available-for-sale securities	0	0	(36)	31
Unrealized gains on foreign exchange forward contracts:
Other comprehensive income (loss), before tax	(50)	157	(288)	618
Income tax provision (benefit), other comprehensive income	0	(35)	8	(184)
Other comprehensive income (loss), net of tax	(50)	122	(280)	434
Total comprehensive income	$ 1,017	$ 50	$ 1,354	$ 1,243

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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