| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/16/12 | Annual report pursuant to Section 13 and 15(d) | PDF | ZIP | 88 | |
| 02/16/12 | Current report filing | PDF | 1 | ||
| 02/16/12 | Current report filing | PDF | 1 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 1 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 2 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 2 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 2 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 1 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 1 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities | PDF | 1 |