| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/06/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/01/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/17/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/02/11 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/18/11 | 3 | Initial statement of beneficial ownership of securities |
|
3 | |
| 08/17/11 | 3/A | Initial statement of beneficial ownership of securities |
|
2 |
