| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/29/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/29/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/29/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/18/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/12/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/01/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/07/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/07/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 01/07/13 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/20/12 | Statement of changes in beneficial ownership of securities |
|
2 |