| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/28/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/30/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/15/11 | 3 | Initial statement of beneficial ownership of securities |
|
4 | |
| 10/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/16/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/24/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/24/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/24/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/11/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
