| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/20/11 | UPLOAD | Form UPLOAD: SEC-generated letter | 1 | |
| 12/16/11 | CORRESP | Form CORRESP: Correspondence | 2 | |
| 12/07/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/02/11 | UPLOAD | Form UPLOAD: SEC-generated letter | 2 | |
| 11/30/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/30/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/29/11 | CORRESP | Form CORRESP: Correspondence | 3 |
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