| 
                                    
                                        04 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        02 May
                                        2018
 | 10-Q | 
                                     
                                        Quarterly report which provides a continuing view of a company's financial position
                                     | 
                                    Quarterly Filings
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 May
                                        2018
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  |