| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 10/31/17 | 10-Q | Form 10-Q: Quarterly report pursuant to Section 13 or 15(d) | 
                                            
                             | 
                                    
                                            
                             | 
                  29 | 
| 10/31/17 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    15 | |
| 10/30/17 | S-8 | Form S-8: Initial registration statement for securities to be offered to employees pursuant to employee benefit plans | 
                                            
                             | 
                                    5 | |
| 09/28/17 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    2 | |
| 08/31/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 08/30/17 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    166 | |
| 08/22/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 08/22/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 08/22/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 08/22/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | 
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