| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/04/13 | SC 13D/A | Form SC 13D/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 14 | |
| 01/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/31/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/31/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/21/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/13/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/13/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/11/12 | 144 | Form 144: Filing for proposed sale of securities under Rule 144 | 2 | |
| 12/06/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/27/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |