| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/18/11 | 3 | Initial statement of beneficial ownership of securities |
|
3 | |
| 02/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/28/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/28/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/28/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/28/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/28/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/17/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/24/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/30/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |