CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS [Abstract]
Net loss	$ (6,545)	$ (11,484)	$ (28,304)
Other comprehensive income
Employee pension plan adjustments	448	1,591	971
Comprehensive loss	$ (6,097)	$ (9,893)	$ (27,333)

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

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