| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/13/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 09/19/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 04/16/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 04/12/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 04/10/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |