Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950123-11-047476-index-headers.html | 2011-05-09 17:00:52 | |
| 0000950123-11-047476-index.html | 2011-05-09 17:00:52 | |
| 0000950123-11-047476.txt | 2011-05-09 17:00:52 | |
 0000950123-11-047476-xbrl.zip | 62125 | 2011-05-09 17:00:52 |
| c15441e10vq.htm | 1074790 | 2011-05-09 17:00:52 |
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| c15441exv31w1.htm | 9271 | 2011-05-09 17:00:52 |
| c15441exv31w2.htm | 9292 | 2011-05-09 17:00:52 |
| c15441exv32w1.htm | 3797 | 2011-05-09 17:00:52 |
| c15441exv32w2.htm | 4323 | 2011-05-09 17:00:52 |
| defnref.xml | 27987 | 2011-05-09 17:00:52 |
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| Financial_Report.xls | 462090 | 2011-05-09 17:00:52 |
| navg-20110331.xml | 595395 | 2011-05-09 17:00:52 |
| navg-20110331.xsd | 14461 | 2011-05-09 17:00:52 |
| navg-20110331_cal.xml | 46975 | 2011-05-09 17:00:52 |
| navg-20110331_def.xml | 12278 | 2011-05-09 17:00:52 |
| navg-20110331_lab.xml | 147583 | 2011-05-09 17:00:52 |
| navg-20110331_pre.xml | 98477 | 2011-05-09 17:00:52 |
| R1.xml | 49492 | 2011-05-09 17:00:52 |
| R10.xml | 11177 | 2011-05-09 17:00:52 |
| R11.xml | 123560 | 2011-05-09 17:00:52 |
| R12.xml | 47525 | 2011-05-09 17:00:52 |
| R13.xml | 10046 | 2011-05-09 17:00:52 |
| R14.xml | 10300 | 2011-05-09 17:00:52 |
| R15.xml | 13411 | 2011-05-09 17:00:52 |
| R16.xml | 9411 | 2011-05-09 17:00:52 |
| R17.xml | 11262 | 2011-05-09 17:00:52 |
| R18.xml | 349795 | 2011-05-09 17:00:52 |
| R19.xml | 10115 | 2011-05-09 17:00:52 |
| R2.xml | 97545 | 2011-05-09 17:00:52 |
| R20.xml | 9144 | 2011-05-09 17:00:52 |
| R3.xml | 33028 | 2011-05-09 17:00:52 |
| R4.xml | 77506 | 2011-05-09 17:00:52 |
| R5.xml | 116073 | 2011-05-09 17:00:52 |
| R6.xml | 40775 | 2011-05-09 17:00:52 |
| R7.xml | 13069 | 2011-05-09 17:00:52 |
| R8.xml | 114974 | 2011-05-09 17:00:52 |
| R9.xml | 9119 | 2011-05-09 17:00:52 |