| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/22/12 | 3/A | Form 3/A: Initial statement of beneficial ownership of securities | 2 | |
| 02/29/12 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 02/29/12 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 02/13/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 02/13/12 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 01/24/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/03/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/03/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/28/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/28/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |