| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/26/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/21/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/31/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/03/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/20/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
