| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/30/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/30/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/30/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/28/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/28/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/28/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/28/11 | Statement of changes in beneficial ownership of securities |
|
2 |