Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Stockholders' Equity Attributable to Parent	$ 269,843	$ 267,328
Accumulated Translation Adjustment [Member]
Stockholders' Equity Attributable to Parent	2,789	2,685
Net current period other comprehensive gain (loss)	104
Reclassification of accumulated other comprehensive income (loss)	0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Stockholders' Equity Attributable to Parent	(60)	(33)
Net current period other comprehensive gain (loss)	(27)
Reclassification of accumulated other comprehensive income (loss)	0
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity Attributable to Parent	2,729	$ 2,652
Net current period other comprehensive gain (loss)	77
Reclassification of accumulated other comprehensive income (loss)	$ 0