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Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure Of Intangible Assets [Abstract] |
Summary of Intangible Assets |
|  | Patents |  |  | Computer Software |  |  | Total |
|  | (in thousands) |
|  | £ |  | £ |  |  | £ |
Cost: |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2015 |  |  | 1,004 |  |  |  | — |  |  |  | 1,004 |
Additions |  |  | 529 |  |  |  | 10 |  |  |  | 539 |
At December 31, 2016 |  |  | 1,533 |  |  |  | 10 |  |  |  | 1,543 |
Accumulated amortization: |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2015 |  |  | 77 |  |  |  | — |  |  |  | 77 |
Charge for the year |  |  | 86 |  |  |  | 3 |  |  |  | 89 |
At December 31, 2016 |  |  | 163 |  |  |  | 3 |  |  |  | 166 |
Cost: |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2016 |  |  | 1,533 |  |  |  | 10 |  |  |  | 1,543 |
Additions |  |  | 582 |  |  |  | 143 |  |  |  | 725 |
At December 31, 2017 |  |  | 2,115 |  |  |  | 153 |  |  |  | 2,268 |
Accumulated amortization: |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2016 |  |  | 163 |  |  |  | 3 |  |  |  | 166 |
Charge for the year |  |  | 139 |  |  |  | 25 |  |  |  | 164 |
At December 31, 2017 |  |  | 302 |  |  |  | 28 |  |  |  | 330 |
Net book value: |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2017 |  |  | 1,813 |  |  |  | 125 |  |  |  | 1,938 |
At December 31, 2016 |  |  | 1,370 |  |  |  | 7 |  |  |  | 1,377 |

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- Definition The disclosure of detailed information about intangible assets. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118&doctype=Standard -URIDate 2017-03-09 + Details
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- References No definition available. + Details
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