CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 464	$ 740	$ 959	$ 567
Other comprehensive income, before tax:
Foreign currency translation adjustments	(17)	(422)	70	(202)
Unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses)	70	4	128	(36)
Reclassification adjustment for gains included in net income	0	0	0	0
Total unrealized gains (losses) on available-for-sale securities	70	4	128	(36)
Unrealized gains on foreign exchange forward contracts:
Other comprehensive income (loss) before income taxes	53	(418)	198	(238)
Income tax (provision) benefit	(14)	(1)	(26)	8
Other comprehensive income (loss) after income taxes	39	(419)	172	(230)
Total comprehensive income	$ 503	$ 321	$ 1,131	$ 337

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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