| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/12/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/12/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/11/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/22/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/21/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/21/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/13/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/10/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |