| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/22/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/20/13 | 3 | Initial statement of beneficial ownership of securities |
|
3 | |
| 02/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/12/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/08/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/08/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
