| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 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 | |
| 02/08/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/05/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/05/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
