| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/01/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/01/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/12/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/10/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
