| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/19/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/13/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/09/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/18/12 | Annual statement of changes in beneficial ownership of securities |
|
2 |