| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/08/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/04/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/01/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/01/13 | Statement of changes in beneficial ownership of securities |
|
2 |