| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/14/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/23/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/18/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/17/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/12/12 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 01/12/12 | 4 | Statement of changes in beneficial ownership of securities |
|
3 |
