| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/31/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/29/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/29/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/29/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/23/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/23/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/18/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/18/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/18/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/05/12 | Statement of changes in beneficial ownership of securities |
|
1 |