| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 06/26/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/26/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/26/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/29/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/21/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/09/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/26/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
