| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/12/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/12/13 | DEF 14A | Definitive proxy statements |
|
36 | |
| 04/03/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/29/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/21/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/15/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/13/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/12/13 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
68 |
| 03/11/13 | 3 | Initial statement of beneficial ownership of securities |
|
3 |