| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/23/13 | 3 | Initial statement of beneficial ownership of securities |
|
2 | |
| 01/23/13 | 3 | Initial statement of beneficial ownership of securities |
|
2 | |
| 11/13/12 | 3/A | Initial statement of beneficial ownership of securities |
|
2 | |
| 09/07/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 09/06/12 | 3 | Initial statement of beneficial ownership of securities |
|
2 | |
| 08/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 07/05/12 | 3 | Initial statement of beneficial ownership of securities |
|
2 | |
| 07/05/12 | 3 | Initial statement of beneficial ownership of securities |
|
2 | |
| 06/29/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/19/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 |