| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/26/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/12 | 3 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/07/11 | 3 | Statement of changes in beneficial ownership of securities |
|
5 | |
| 12/07/11 | 3 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 12/06/11 | 3 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 09/20/11 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 08/26/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/17/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/11 | 4 | Statement of changes in beneficial ownership of securities |
|
3 |
