Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of the period		$ 321
Net other comprehensive income (loss) at March 31, 2015	637	321
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of the period	128
Other comprehensive income (loss) before reclassifications	310
Amount reclassified from AOCI	0
Net other comprehensive income (loss) at March 31, 2015	438
Unrealized Gain (Loss) on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of the period	193
Other comprehensive income (loss) before reclassifications	17
Amount reclassified from AOCI	(11)
Net other comprehensive income (loss) at March 31, 2015	199
Total Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at the beginning of the period	321
Other comprehensive income (loss) before reclassifications	327
Amount reclassified from AOCI	(11)
Net other comprehensive income (loss) at March 31, 2015	$ 637