| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/27/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/27/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/18/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/18/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/18/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/18/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/18/17 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 01/17/17 | Annual statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 10/11/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 09/14/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | 
