| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/18/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
