| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/03/12 | SEC-generated letter |
|
1 | ||
| 05/02/12 | Statement of changes in beneficial ownership of securities |
|
2 |