Income Tax - Deferred income tax assets and liabilities by classification (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred income tax asset and liability [abstract]
Deferred income tax assets	$ 211	$ 182
Deferred income tax liabilities	(2,301)	(2,653)
Long term liabilities held for sale	0	(1,311)
Total Deferred Tax Liabilities	$ (2,090)	$ (3,782)

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.

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