CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) [Abstract]
Net loss	$ (600)	$ (1,490)	$ (11,578)	$ (19,190)
Other comprehensive income
Employee pension plan adjustments	162	440	485	881
Comprehensive loss	$ (438)	$ (1,050)	$ (11,093)	$ (18,309)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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