| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |