| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5/A | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 |