| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/06/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/05/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/05/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/05/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/23/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/02/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 08/20/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 08/12/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 08/12/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/14/10 | Statement of changes in beneficial ownership of securities |
|
2 |