Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014
Changes in accumulated other comprehensive income (loss) by component
Amounts reclassified from other comprehensive income	$ 0	$ 0
Balance at the beginning of the period	2,670	2,668
Other comprehensive income (loss) before reclassifications	78	80
Net current-period other comprehensive income	78	80
Balance at the end of the period	2,748	2,748
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	83	82
Other comprehensive income (loss) before reclassifications	80	81
Net current-period other comprehensive income	80	81
Balance at the end of the period	163	163
Accumulated Translation Adjustment [Member]
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	2,587	2,586
Other comprehensive income (loss) before reclassifications	(2)	(1)
Net current-period other comprehensive income	(2)	(1)
Balance at the end of the period	$ 2,585	$ 2,585