| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/16/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/14/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/11/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/10/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/07/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 01/02/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/31/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 |