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Loss on sale of assets - Schedule of sale of assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure on Sale of Assets [Line Items] |  |
Cash proceeds received in 2018 | $ 1,345 | $ 981
Proceeds receivable (constrained estimate of earn-out payments) | 2,000 | 0
Loss on sale of assets | (4,049) | (1,365)
Power Manager assets |  |
Disclosure on Sale of Assets [Line Items] |  |
Cash proceeds received in 2018 | 2,000 | 0
Note receivable as of December 31, 2018 | 2,132 |
Proceeds receivable (constrained estimate of earn-out payments) | 2,000 |
Total proceeds | (6,132) |
Less: Disposition costs | (707) | 0
Net proceeds | 5,425 |
Less: Net book value of disposed assets | (9,382) |
Loss on sale of assets | $ (3,957) | $ 0

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- Definition The gain (loss) recognised on the measurement to fair value less costs to sell or on the disposal of the assets or disposal group(s) constituting the discontinued operation. [Refer: Discontinued operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2017-01-01 -Paragraph 33 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2017-03-01&anchor=para_33_b_iii&doctype=Standard -URIDate 2017-03-09 + Details
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