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Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net loss	$ (5,664)	$ (9,225)
Other comprehensive (loss) income
Foreign currency translation adjustments	(161)	174
Amortization of net prior service costs and net actuarial losses, net of tax	62	(108)
Other comprehensive (loss) income	(99)	66
Comprehensive loss	$ (5,763)	$ (9,159)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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

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