| Date | Form | Description | Docs | XBRL | Pages |
| 05/27/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/27/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/10/10 | 5 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/10/10 | 5 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/24/10 | 3 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/11/09 | 5 | Statement of changes in beneficial ownership of securities |
|
2 |



