| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/19/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/09/12 | SC 13G/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions |
|
5 | |
| 02/23/12 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
160 |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
