| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/30/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/11/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/21/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/12/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/21/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/21/12 | Statement of changes in beneficial ownership of securities |
|
2 |