| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/03/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/16/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/02/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/02/12 | Initial statement of beneficial ownership of securities |
|
2 | ||
| 02/23/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/23/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/16/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/14/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/07/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/07/12 | Statement of changes in beneficial ownership of securities |
|
1 |