| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/07/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 08/17/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/09/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 07/06/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/24/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/06/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |