Organization and Significant Accounting Policies - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	$ (448)
Total other comprehensive (loss) income	(1,108)	$ (485)	$ 429
Balance, end of period	(1,556)	(448)
Foreign currency translation
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(471)	18
Total other comprehensive (loss) income	(1,097)	(489)
Balance, end of period	(1,568)	(471)	18
Available-for-sale marketable securities
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	23	19
Other comprehensive income (loss):	(11)	4
Deferred income taxes	0	0
Total other comprehensive (loss) income	(11)	4
Balance, end of period	12	23	$ 19
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(448)
Balance, end of period	$ (1,556)	$ (448)