| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/30/13 | SC 13G | Form SC 13G: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 5 | |
| 01/07/13 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 1 | |
| 01/07/13 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |