| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/18/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/18/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/18/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/27/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/20/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/17/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
