| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/10/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/10/12 | 3 | Form 3: Initial statement of beneficial ownership of securities | 1 | |
| 01/09/12 | 3/A | Form 3/A: Initial statement of beneficial ownership of securities | 1 | |
| 01/09/12 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 1 | |
| 01/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 08/16/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |