| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/11/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/11/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/25/11 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/11/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
