XML 71 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Share Capital and Share Premium (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Disclosure Of Classes Of Share Capital [Abstract] |
Summary of Share Capital and Share Premium |
|  | 2017 |  |  | 2016 |  |  | 2015 |
|  | (in thousands) |
|  | £ |  |  | £ |  |  | £ |
Share capital |  |  | 1,272 |  |  |  | 663 |  |  |  | 659 |
Share premium |  |  | 79,236 |  |  |  | 42,770 |  |  |  | 42,574 |
|  |  | 80,508 |  |  |  | 43,433 |  |  |  | 43,233 |
|  | Number |  |  | Number |  |  | Number |
|  | (in thousands) |
Issued share capital comprises: |  |  |  |  |  |  |  |  |  |  |  |
Ordinary shares of £0.04 each (2016 and 2015: £0.01 each) |  |  | 31,811 |  |  |  | 6,239 |  |  |  | 6,156 |
Founder ordinary 1 shares of £0.01 each |  |  | — |  |  |  | 1,000 |  |  |  | 1,000 |
Founder ordinary 2 shares of £0.01 each |  |  | — |  |  |  | 1,000 |  |  |  | 1,000 |
Series A shares of £0.01 each |  |  | — |  |  |  | 7,483 |  |  |  | 7,483 |
Series B shares of £0.001 each |  |  | — |  |  |  | 8,463 |  |  |  | 8,463 |
|  |  | 31,811 |  |  |  | 24,185 |  |  |  | 24,102 |
Summary of Movement in the Share Capital | 11. Share capital and share premium (continued)
|  | Number of shares |  |  | Share capital |  |  | Share premium |
|  | (in thousands) |
|  |  |  |  |  | £ |  |  | £ |
Fully paid shares: |  |  |  |  |  |  |  |  |  |  |  |
Balance at January 1, 2015 and December 31, 2015 |  |  | 24,102 |  |  |  | 659 |  |  |  | 42,574 |
Issue of shares on exercise of options |  |  | 83 |  |  |  | 4 |  |  |  | 196 |
Balance at December 31, 2016 |  |  | 24,185 |  |  |  | 663 |  |  |  | 42,770 |
Reduction in share premium account |  |  | — |  |  |  | — |  |  |  | (42,466 | )
Exercise of share options |  |  | 30 |  |  |  | 1 |  |  |  | 119 |
Bonus issue to series B |  |  | — |  |  |  | 304 |  |  |  | (304 | )
Issue of share capital |  |  | 7,596 |  |  |  | 304 |  |  |  | 79,530 |
IPO costs |  |  | — |  |  |  | — |  |  |  | (413 | )
Balance at December 31, 2017 |  |  | 31,811 |  |  |  | 1,272 |  |  |  | 79,236 |

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfClassesOfShareCapitalAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of classes of share capital. [Refer: Share capital [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 79 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of movement in the share capital. + References No definition available. + Details
Name: | ncna_DisclosureOfMovementInTheShareCapitalExplanatory
Namespace Prefix: | ncna_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration