| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/31/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/17/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/20/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/05/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/22/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |