| Date | Form | Description | Docs | XBRL | Pages |
| 05/07/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/04/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/04/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/14/11 | 5 | Annual statement of changes in beneficial ownership of securities |
|
1 | |
| 07/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
