| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/11 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/09/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |