Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	$ (308)	$ 244	$ 625
Current period other comprehensive income (loss)	(1,019)	(552)	(381)
Balance, end of period	(1,327)	(308)	244
Unrealized Gain (Loss) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(18)	0	0
Current period other comprehensive income (loss)	2	(18)	0
Balance, end of period	(16)	(18)	0
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(290)	244	625
Current period other comprehensive income (loss)	(1,021)	(534)	(381)
Balance, end of period	$ (1,311)	$ (290)	$ 244