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Property, plant and equipment (Details 2) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Property Plant And Equipment [line items] |  |
Land | $ 1,480 | $ 1,891
Facilities and fixtures | 109 | 165
Total | $ 1,589 | $ 2,056

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The value of assets available for sale as of balance sheet. + References No definition available. + Details
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- Definition The value of facilities and fixtures available for sale as of balance sheet. + References No definition available. + Details
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- Definition Carrying value of land held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2599-110228 + Details
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