| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/21/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/20/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/20/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/19/13 | 144 | Form 144: Filing for proposed sale of securities under Rule 144 | 2 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |