| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/25/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/25/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/08/13 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 02/08/13 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 01/22/13 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 01/09/13 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 01/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 01/02/13 | 4/A | Statement of changes in beneficial ownership of securities |
|
3 | |
| 12/31/12 | 4 | Statement of changes in beneficial ownership of securities |
|
3 | |
| 12/11/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
