| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |