| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 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 | |
| 02/05/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/01/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/31/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/31/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 |