| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/21/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/20/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/20/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/16/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/16/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/13/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/19/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/19/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/19/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 04/19/13 | Statement of changes in beneficial ownership of securities |
|
1 |