| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/27/12 | 8-K | Current report filing |
|
9 | |
| 01/18/12 | ARS | Annual report to security holders |
|
1 | |
| 01/17/12 | DEF 14A | Definitive proxy statements |
|
53 | |
| 01/10/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 12/14/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/22/11 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
92 |
| 11/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 11/15/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
