| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/01/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |