| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/14/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/14/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/09/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/09/11 | Statement of changes in beneficial ownership of securities |
|
1 |