| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/25/12 | 3/A | Initial statement of beneficial ownership of securities |
|
1 | |
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/05/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/05/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/10/11 | 3 | Initial statement of beneficial ownership of securities |
|
1 |