| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/22/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/21/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/20/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/19/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/14/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/11/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 02/08/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 02/07/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 |