| Date | Form | Description | Docs | XBRL | Pages |
| 06/17/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/23/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/18/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 04/09/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/22/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 10/09/12 | 5 | Statement of changes in beneficial ownership of securities |
|
1 |