| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |   | 3 | |
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |   | 3 | |
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |   | 3 | |
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 11/28/12 | 4/A | Statement of changes in beneficial ownership of securities |   | 3 | |
| 11/28/12 | 4/A | Statement of changes in beneficial ownership of securities |   | 3 | |
| 11/28/12 | 4/A | Statement of changes in beneficial ownership of securities |   | 3 | |
| 11/28/12 | 4/A | Statement of changes in beneficial ownership of securities |   | 3 | |
| 11/28/12 | 4/A | Statement of changes in beneficial ownership of securities |   | 3 | |
| 11/13/12 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |