Accumulated Other Comprehensive Income (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2015 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at the beginning of the period	$ 321
Balance at the end of the period	301
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at the end of the period	199
Realized gain/(loss) on sale of marketable securities	(199)
Income tax (expense) benefit	0
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at the beginning of the period	128
Other comprehensive income before reclassifications	174
Amount reclassified from AOCI	0
Balance at the end of the period	300
Unrealized Gain (Loss) on Available-for- Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at the beginning of the period	193
Other comprehensive income before reclassifications	7
Amount reclassified from AOCI	(199)
Balance at the end of the period	1
Total Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at the beginning of the period	321
Other comprehensive income before reclassifications	181
Amount reclassified from AOCI	(199)
Balance at the end of the period	$ 301