| 31st Aug 2018 5:02 pm | RNS | Total Voting Rights | 
                                                                            
                                            | 20th Aug 2018 7:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 17th Aug 2018 2:58 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 17th Aug 2018 7:00 am | RNS | Exercise of Options | 
                                                                            
                                            | 26th Jul 2018 7:00 am | RNS | Directorate Change | 
                                                                            
                                            | 25th Jul 2018 12:04 pm | RNS | Result of AGM | 
                                                                            
                                            | 24th Jul 2018 7:00 am | RNS | Board Changes | 
                                                                            
                                            | 10th Jul 2018 9:12 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 9th Jul 2018 11:31 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 2nd Jul 2018 3:50 pm | RNS | Annual Report and Notice of AGM | 
                                                                            
                                            | 28th Jun 2018 5:57 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 12th Jun 2018 7:00 am | RNS | Exercise of Options | 
                                                                            
                                            | 11th Jun 2018 7:00 am | RNS | Board Change | 
                                                                            
                                            | 5th Jun 2018 4:31 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 5th Jun 2018 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 4th Jun 2018 3:10 pm | RNS | Dividend Declaration | 
                                                                            
                                            | 1st Jun 2018 7:00 am | RNS | Financial results to 31 March 2018 | 
                                                                            
                                            | 23rd May 2018 8:26 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 27th Apr 2018 4:30 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 18th Apr 2018 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 9th Mar 2018 3:30 pm | RNS | Transaction in Own Shares | 
                                                                            
                                            | 9th Mar 2018 7:00 am | RNS | Exercise of Options and Buyback of Option Shares | 
                                                                            
                                            | 8th Jan 2018 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 28th Nov 2017 11:52 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 27th Nov 2017 9:48 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 17th Nov 2017 7:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 27th Oct 2017 7:00 am | RNS | Interim Results | 
                                                                            
                                            | 16th Oct 2017 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 2nd Oct 2017 4:26 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 12th Sep 2017 2:31 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 21st Aug 2017 5:49 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 21st Aug 2017 7:00 am | RNS | Result of AGM | 
                                                                            
                                            | 18th Aug 2017 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 11th Jul 2017 1:18 pm | RNS | Annual Report and Notice of AGM | 
                                                                            
                                            | 3rd Jul 2017 7:59 am | RNS | Total Voting Rights | 
                                                                            
                                            | 26th Jun 2017 11:23 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 16th Jun 2017 1:33 pm | RNS | Exercise of Options and Director Dealing | 
                                                                            
                                            | 15th Jun 2017 7:00 am | RNS | Dividend Declaration | 
                                                                            
                                            | 15th Jun 2017 7:00 am | RNS | Directorate Change | 
                                                                            
                                            | 15th Jun 2017 7:00 am | RNS | Financial results to 31 March 2017 |