| Date | Form | Description | Docs | XBRL | Pages |
| 03/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 03/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 03/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/07/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/07/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/07/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/07/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |