| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/23/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/23/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/23/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/09/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/18/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/01/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
