| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/24/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/24/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/24/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/24/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/22/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/30/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/03/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/25/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |