| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| May 31, 2012 | A correspondence can be sent as a document with another submission type or can be sent as a separate submission. |
|
9 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| May 29, 2012 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| May 16, 2012 | SEC-generated letter |
|
4 |