| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 03/01/11 | 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 | |
| 01/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/29/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/16/10 | 4 | Statement of changes in beneficial ownership of securities |
|
4 | |
| 08/16/10 | 4/A | Statement of changes in beneficial ownership of securities |
|
4 |
