Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Balance at beginning of period	$ (431)	$ (1,548)
Balance at end of period		(1,548)
Current period change	(1,117)
Accumulated Translation Adjustment [Member]
Balance at beginning of period	(424)	(1,549)
Balance at end of period		(1,549)
Current period change	(1,125)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance at beginning of period	(7)	1
Balance at end of period		1
Current period change	$ 8