CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) [Abstract]
Net loss	$ (7,605)	$ (11,596)	$ (14,488)	$ (22,691)
Other comprehensive income
Employee pension plan adjustments, net of taxes	231	113	462	225
Comprehensive loss	$ (7,374)	$ (11,483)	$ (14,026)	$ (22,466)