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Long-term contracts (Costs Incurred on Contracts) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Long-term Contracts Costs Incurred On Contracts Details |  |
Costs and estimated earnings incurred on uncompleted contracts | $ 193 | $ 0
Billings on uncompleted contracts | (236) | 0
Net of costs and billings on uncompleted contracts | (43) | 0
Included in accompanying consolidated balance sheets under the following captions: |  |
Other current assets | 125 | 0
Billings on uncompleted contracts in excess of related costs | (168) | 0
Net of costs and billings on uncompleted contracts | $ (43) | $ 0

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- Definition Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57788-111642 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57807-111642 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57795-111642 + Details
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