| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/14/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/11/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/11/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/11/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 |