| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 01/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/30/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/29/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/28/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/13/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/01/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/01/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
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