| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/23/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/23/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/23/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/23/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/04/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/04/11 | Initial statement of beneficial ownership of securities |
|
1 | ||
| 11/12/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 07/30/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 06/18/10 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 06/18/10 | Statement of changes in beneficial ownership of securities |
|
2 |