| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/24/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/24/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/24/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/20/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/01/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/26/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 10/26/11 | Initial statement of beneficial ownership of securities |
|
2 | ||
| 10/26/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/26/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/25/11 | Statement of changes in beneficial ownership of securities |
|
2 |