| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/18/11 | Initial statement of beneficial ownership of securities |
|
2 | ||
| 01/19/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/05/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/05/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 12/21/10 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 12/08/10 | Statement of changes in beneficial ownership of securities |
|
1 |