| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/19/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/09/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/09/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/27/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/27/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 09/01/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 06/29/11 | Statement of changes in beneficial ownership of securities |
|
2 |
