CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (173)	$ (214)
Other comprehensive income, before tax:
Foreign currency translation adjustments	220	269
Unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses)	(40)	20
Reclassification adjustments	0	0
Total unrealized gains (losses) on available-for-sale securities	(40)	20
Unrealized gains on foreign exchange forward contracts:
Other comprehensive income, before tax	180	289
Income tax provision (benefit) related to items of other comprehensive income	9	(86)
Other comprehensive income (loss), net of tax	189	203
Total comprehensive income (loss)	$ 16	$ (11)

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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Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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