| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/14/13 | Annual statement of changes in beneficial ownership of securities |
|
3 | ||
| 05/14/13 | Annual statement of changes in beneficial ownership of securities |
|
3 | ||
| 03/19/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/13 | Statement of changes in beneficial ownership of securities |
|
2 |