| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/12/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |