| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |