| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/23/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/23/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/23/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/23/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/28/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/27/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 10/31/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/31/12 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 |