| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/31/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/14/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/14/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/14/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/11/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/09/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/24/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
