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Consolidated Statements Of Changes In Equity - GBP (£) £ in Thousands | Total | Share Capital | Share Capital Series B Shareholders | Share Premium | Share Premium Series B Shareholders | Own Share Reserve | Share Option Reserve | Foreign Currency Translation Reserve | Capital Reserve | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2014 | £ 34,508 | £ 659 |  | £ 42,574 |  | £ (339) | £ 2,506 |  |  | £ (10,892)
Loss for the year | (5,332) |  |  |  |  |  |  |  |  | (5,332)
Other comprehensive expense for the year | (1) |  |  |  |  |  |  | £ (1) |  |
Total comprehensive loss for the year | (5,333) |  |  |  |  |  |  | (1) |  | (5,332)
Share-based payments | 785 |  |  |  |  |  | 785 |  |  |
Ending balance at Dec. 31, 2015 | 29,960 | 659 |  | 42,574 |  | (339) | 3,291 | (1) |  | (16,224)
Loss for the year | (6,049) |  |  |  |  |  |  |  |  | (6,049)
Other comprehensive expense for the year | (2) |  |  |  |  |  |  | (2) |  |
Total comprehensive loss for the year | (6,051) |  |  |  |  |  |  | (2) |  | (6,049)
Share-based payments | 1,132 |  |  |  |  |  | 1,132 |  |  |
Exercise of share options | 200 | 4 |  | 196 |  |  | (17) |  |  | 17
Issue of share capital |  | 4 |  | 196 |  |  |  |  |  |
Ending balance at Dec. 31, 2016 | 25,241 | 663 |  | 42,770 |  | (339) | 4,406 | (3) |  | (22,256)
Loss for the year | (23,085) |  |  |  |  |  |  |  |  | (23,085)
Other comprehensive expense for the year | (8) |  |  |  |  |  |  | (8) |  |
Total comprehensive loss for the year | (23,093) |  |  |  |  |  |  | (8) |  | (23,085)
Share-based payments | 11,731 |  |  |  |  |  | 11,731 |  |  |
Reduction in share premium |  |  |  | (42,466) |  |  |  |  | £ 42,466 |
Exercise of share options | 120 | 1 |  | 119 |  |  | (180) |  |  | 180
Lapse Of Share Options |  |  |  |  |  |  | (2) |  |  | 2
Bonus issue to series B shareholders |  | 304 | £ 304 | (304) | £ (304) |  |  |  |  |
Issue of share capital | 79,834 | 304 |  | 79,530 |  |  |  |  |  |
Transaction costs | (413) |  |  | (413) |  |  |  |  |  |
Ending balance at Dec. 31, 2017 | £ 93,420 | £ 1,272 |  | £ 79,236 |  | £ (339) | £ 15,955 | £ (11) | £ 42,466 | £ (45,159)

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