| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/17/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/13/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/12/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/10/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/09/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/06/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/30/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 |