| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/21/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/21/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/17/12 | Initial statement of beneficial ownership of securities |
|
3 | ||
| 05/14/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/10/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/08/12 | Initial statement of beneficial ownership of securities |
|
3 | ||
| 05/07/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/07/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/04/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/02/12 | Statement of changes in beneficial ownership of securities |
|
1 |