| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/15/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/06/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/06/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/06/12 | Statement of changes in beneficial ownership of securities |
|
3 |