| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/18/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/18/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/18/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 08/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/13/11 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 |
