| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/11/11 | UPLOAD | SEC-generated letter |   | 1 | |
| 02/03/11 | CORRESP | A correspondence can be sent as a document with another submission type or can be sent as a separate submission. |   | 2 | |
| 01/31/11 | 8-K | Current report filing |   | 8 | |
| 01/27/11 | 8-K | Current report filing |   | 24 | |
| 01/21/11 | 8-K | Current report filing |   | 3 | |
| 01/20/11 | UPLOAD | SEC-generated letter |   | 2 | |
| 01/19/11 | 8-K | Current report filing |   | 3 | |
| 01/10/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 01/06/11 | 8-K | Current report filing |   | 7 | |
| 01/04/11 | CORRESP | A correspondence can be sent as a document with another submission type or can be sent as a separate submission. |   | 11 |