| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/05/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/01/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/26/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/26/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/26/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/21/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/14/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/14/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/14/13 | Statement of changes in beneficial ownership of securities |
|
2 |