| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/18/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/18/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/13/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/11/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/07/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/06/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/01/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/25/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/15/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/14/13 | Statement of changes in beneficial ownership of securities |
|
1 |