| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/07/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/17/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/15/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/15/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/14/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/14/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/10/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/08/11 | Statement of changes in beneficial ownership of securities |
|
1 |