| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/20/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/20/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/21/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/02/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 10/19/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 10/18/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 08/23/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/23/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |
