| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 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 | ||
| 02/13/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/07/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/07/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/31/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/24/13 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 01/24/13 | Annual statement of changes in beneficial ownership of securities |
|
1 |