| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 08/01/17 | 8-K | Current report filing | 
       
   | 
  4 | |
| 07/28/17 | PRE 14A | Preliminary proxy statement not related to a contested matter or merger/acquisition | 
       
   | 
  38 | |
| 07/27/17 | 8-K | Current report filing | 
       
   | 
  4 | |
| 07/20/17 | 8-K | Current report filing | 
       
   | 
  5 | |
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 07/03/17 | 8-K | Current report filing | 
       
   | 
  3 | 
