| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/04/15 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 02/04/15 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 02/04/15 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 01/27/15 | Current report filing | 
     PDF   
   | 
  7 | ||
| 01/07/15 | Annual statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 01/07/15 | Annual statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 01/07/15 | Initial statement of beneficial ownership of securities | 
     PDF   
   | 
  3 | ||
| 01/07/15 | Initial statement of beneficial ownership of securities | 
     PDF   
   | 
  1 | ||
| 01/06/15 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 | ||
| 01/06/15 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 |