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Basic and Diluted Loss Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Loss Per Share |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (in thousands, except per share data) |
|  | £ |  |  | £ |  |  | £ |
Loss for the year |  |  | (30,682 | ) |  |  | (21,412 | ) |  |  | (13,840 | )
Basic and diluted weighted average number of shares |  |  | 37,882 |  |  |  | 32,327 |  |  |  | 31,972 |
|  | £ |  |  | £ |  |  | £ |
Basic and diluted loss per share |  |  | (0.81 | ) |  |  | (0.66 | ) |  |  | (0.43 | )

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- Definition The disclosure of earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2020-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2020-en-r&anchor=para_66&doctype=Standard -URIDate 2020-01-01 + Details
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