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|---|---|---|
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| 0000908834-11-000297-index.html | 2011-11-14 14:29:54 | |
| 0000908834-11-000297.txt | 2011-11-14 14:29:54 | |
 0000908834-11-000297-xbrl.zip | 86023 | 2011-11-14 14:29:54 |
| FilingSummary.xml | 8864 | 2011-11-14 14:29:54 |
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| R1.htm | 22536 | 2011-11-14 14:29:54 |
| R10.htm | 64954 | 2011-11-14 14:29:54 |
| R11.htm | 244983 | 2011-11-14 14:29:54 |
| R12.htm | 157372 | 2011-11-14 14:29:54 |
| R13.htm | 787895 | 2011-11-14 14:29:54 |
| R14.htm | 9276 | 2011-11-14 14:29:54 |
| R15.htm | 11491 | 2011-11-14 14:29:54 |
| R16.htm | 5297 | 2011-11-14 14:29:54 |
| R2.htm | 105743 | 2011-11-14 14:29:54 |
| R3.htm | 28403 | 2011-11-14 14:29:54 |
| R4.htm | 109516 | 2011-11-14 14:29:54 |
| R5.htm | 29214 | 2011-11-14 14:29:54 |
| R6.htm | 7407 | 2011-11-14 14:29:54 |
| R7.htm | 136441 | 2011-11-14 14:29:54 |
| R8.htm | 5306 | 2011-11-14 14:29:54 |
| R9.htm | 13300 | 2011-11-14 14:29:54 |
| report.css | 2721 | 2011-11-14 14:29:54 |
| rivr-20110930.htm | 1730476 | 2011-11-14 14:29:54 |
| rivr-20110930.xml | 1468395 | 2011-11-14 14:29:54 |
| rivr-20110930.xsd | 14487 | 2011-11-14 14:29:54 |
| rivr-20110930ex311.htm | 15380 | 2011-11-14 14:29:54 |
| rivr-20110930ex312.htm | 15338 | 2011-11-14 14:29:54 |
| rivr-20110930ex32.htm | 4645 | 2011-11-14 14:29:54 |
| rivr-20110930_cal.xml | 57212 | 2011-11-14 14:29:54 |
| rivr-20110930_lab.xml | 251714 | 2011-11-14 14:29:54 |
| rivr-20110930_pre.xml | 94734 | 2011-11-14 14:29:54 |
| Show.js | 6423 | 2011-11-14 14:29:54 |