| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/16/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/09/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/03/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/17/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/02/14 | 4/A | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/02/14 | 4/A | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/02/14 | 4/A | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 04/02/14 | 4/A | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/28/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/28/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

