| Date | Form | Description | XBRL |
|---|---|---|---|
| 07/09/12 | UPLOAD | Form UPLOAD: SEC-generated letter | |
| 06/22/12 | CORRESP | Form CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission. | |
| 06/13/12 | UPLOAD | Form UPLOAD: SEC-generated letter | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 06/01/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | |
| 05/30/12 | CORRESP | Form CORRESP: A correspondence can be sent as a document with another submission type or can be sent as a separate submission. |