CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net (loss) income	$ (471)	$ 2,581	$ (9,677)	$ (11,907)
Other comprehensive income
Employee pension plan adjustments	222	231	666	694
Comprehensive (loss) income	$ (249)	$ 2,812	$ (9,011)	$ (11,213)