| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/13/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 02/10/12 | CORRESP | Form CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission. | 2 | |
| 02/09/12 | UPLOAD | Form UPLOAD: SEC-generated letter | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 | |
| 01/27/12 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 2 |