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Property, plant and equipment - Net carrying amounts (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | $ 21,620 | $ 15,314
Building under finance lease |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | 5,007 | 5,819
Computer equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | 1,639 | 1,020
Furniture and fixtures |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | 67 | 155
Leasehold improvements |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | 1,019 | 1,624
Production and test equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment | $ 13,888 | $ 6,696

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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 amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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