| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/16/13 | Statement of changes in beneficial ownership of securities | 1 | |||
| 01/16/13 | Initial statement of beneficial ownership of securities | 1 | |||
| 01/03/13 | Statement of changes in beneficial ownership of securities | 1 | |||
| 12/27/12 | Initial statement of beneficial ownership of securities | 1 | |||
| 09/28/12 | Statement of changes in beneficial ownership of securities | 1 | |||
| 09/28/12 | Initial statement of beneficial ownership of securities | 1 | |||
| 03/07/12 | Initial statement of beneficial ownership of securities | 1 | |||
| 03/06/12 | Initial statement of beneficial ownership of securities | 1 | |||
| 03/05/12 | Initial statement of beneficial ownership of securities | 1 | |||
| 02/21/12 | Initial statement of beneficial ownership of securities | 1 |