| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/07/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |