| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 08/05/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/04/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/29/15 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                                            | 
  19 | 
| 07/23/15 | 8-K | Current report filing | 
       
   | 
  18 | |
| 07/02/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/02/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/02/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/28/15 | SD | Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1) | 
       
   | 
  7 | |
| 05/18/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/01/15 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 




