| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/28/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/28/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/27/12 | Annual report pursuant to Section 13 and 15(d) |
|
  |
155 | |
| 02/27/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/17/12 | Current report filing |
|
46 | ||
| 02/13/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/12 | Annual statement of changes in beneficial ownership of securities |
|
2 |