| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 06/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 06/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 06/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 06/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 05/20/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 03/31/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/18/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 10/05/10 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |
