| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 3 | Form 3: Initial statement of beneficial ownership of securities | 1 | |
| 02/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/30/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/28/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |