| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 11/14/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/31/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/27/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/27/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/27/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 07/03/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 07/03/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 07/03/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 05/31/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 05/24/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | 
