| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/29/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/29/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/29/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/29/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/24/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/24/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/21/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/20/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/20/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/17/10 | Statement of changes in beneficial ownership of securities |
|
2 |