Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ 5,883	$ (6,900)	$ 7,751	$ (6,726)
Other comprehensive income (loss):
Foreign currency translation adjustments	329	759	(681)	82
Amortization of actuarial gains from pension plan	19	6	38	12
Total other comprehensive income (loss)	348	765	(643)	94
Comprehensive income (loss)	$ 6,231	$ (6,135)	$ 7,108	$ (6,632)