Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Comprehensive Income (Loss) [Abstract]
Net loss	$ (4,134)	$ (1,496)	$ (2,679)	$ (3,103)
Foreign currency translation adjustments	(1,549)	(3,397)	(3,890)	(940)
Pension liability adjustments	(137)	0	(137)	0
Comprehensive loss	$ (5,820)	$ (4,893)	$ (6,706)	$ (4,043)