| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/06/13 | Initial statement of beneficial ownership of securities |
|
2 | ||
| 03/01/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/28/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/13/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/08/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/01/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/04/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/04/13 | Statement of changes in beneficial ownership of securities |
|
1 |