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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net loss	$ (1,439)	$ (5,664)
Other comprehensive income (loss)
Foreign currency translation adjustments	4,766	(161)
Amortization of net prior service costs and net actuarial losses, net of tax	1,145	62
Other comprehensive income (loss)	5,911	(99)
Comprehensive income (loss)	$ 4,472	$ (5,763)

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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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