| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/20/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/17/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/17/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/02/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/02/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/23/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/11/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/09/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/15/13 | Statement of changes in beneficial ownership of securities |
|
2 |
