| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/20/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/14/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/10/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/14/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/14/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/13/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/07/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/07/13 | Statement of changes in beneficial ownership of securities |
|
1 |