| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/24/13 | Current report filing |
|
8 | ||
| 02/12/13 | Current report filing |
|
3 | ||
| 02/12/13 | Quarterly report pursuant to Section 13 or 15(d) |
|
  |
20 | |
| 11/13/12 | Quarterly report pursuant to Section 13 or 15(d) |
|
|
19 | |
| 09/28/12 | Annual report pursuant to Section 13 and 15(d) |
|
|
45 | |
| 05/15/12 | Quarterly report pursuant to Section 13 or 15(d) |
|
|
19 | |
| 03/14/12 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities |
|
3 | ||
| 03/14/12 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities |
|
3 | ||
| 02/14/12 | Quarterly report pursuant to Section 13 or 15(d) |
|
|
22 | |
| 12/14/11 | Quarterly report pursuant to Section 13 or 15(d) |
|
|
3 |