| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/26/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/26/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/21/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/21/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/17/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/17/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/17/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |
