| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/09/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/08/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/26/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/06/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/30/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 01/04/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 12/22/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
