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| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/15/12 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
   |
20 |
| 11/14/11 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
|
21 |
| 08/15/11 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
|
21 |
| 05/16/11 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
18 | |
| 11/15/10 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
20 | |
| 08/16/10 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
20 | |
| 05/17/10 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
19 | |
| 11/16/09 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
23 | |
| 08/14/09 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
22 | |
| 05/15/09 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
|
19 |