| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/16/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/05/11 | Statement of changes in beneficial ownership of securities |
|
2 |