| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/08/12 | PRE 14A | Preliminary proxy statement not related to a contested matter or merger/acquisition |
|
32 | |
| 03/07/12 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
133 |
| 02/23/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/14/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/02/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/24/12 | 8-K | Current report filing |
|
7 | |
| 12/09/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/30/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |