Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ (647)	$ 246	$ (308)	$ 244
Current period other comprehensive income (loss)	(441)	(249)	(780)	(247)
Balance at end of period	(1,088)	(3)	(1,088)	(3)
Unrealized Gain (Loss) on Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(5)	(10)	(18)	0
Current period other comprehensive income (loss)	10	4	23	(6)
Balance at end of period	5	(6)	5	(6)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(642)	256	(290)	244
Current period other comprehensive income (loss)	(451)	(253)	(803)	(241)
Balance at end of period	$ (1,093)	$ 3	$ (1,093)	$ 3