| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/19/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/19/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/19/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/30/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/18/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/01/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
