| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/21/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/05/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/21/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/13/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 |