| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/26/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 01/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/21/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/09/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |