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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
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Schedule of Estimated Useful Lives and Depreciation Calculation Methods | Depreciation is calculated at annual rates designed to write off the costs of assets over their estimated useful lives as follows:
Engineering equipment |  | 5 to 10 years |  | straight-line
Office equipment |  | 5 to 10 years |  | straight-line
Leasehold improvements |  |  |  | straight-line over term of lease to a maximum of 15 years or the improvement’s economic life
Other |  | 5 to 50 years |  | straight-line

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- Definition The description of the entity's accounting policy for depreciation expense. [Refer: Depreciation and amortisation expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_117_b&doctype=Standard -URIDate 2018-03-16 + Details
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