| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/02/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/30/12 | Definitive proxy statements |
|
50 | ||
| 04/27/12 | Quarterly report pursuant to Section 13 or 15(d) |
|
  |
140 | |
| 04/25/12 | Current report filing |
|
19 | ||
| 04/24/12 | A correspondence can be sent as a document with another submission type or can be sent as a separate submission. |
|
2 | ||
| 04/20/12 | SEC-generated letter |
|
2 |