| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/12 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
217 |
| 02/17/12 | 8-K | Current report filing |
|
4 | |
| 02/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/12 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/10/12 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/09/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |