| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/11/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/11/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/11/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/20/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 |
