| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 10/06/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/30/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
