| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/24/12 | SC 13G/A | Form SC 13G/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 6 | |
| 01/12/12 | CORRESP | Form CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission. | 9 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/21/11 | UPLOAD | Form UPLOAD: SEC-generated letter | 2 |