| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 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 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/24/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/12 | Statement of changes in beneficial ownership of securities |
|
2 |