Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000808450-20-000092-index-headers.html | 2020-06-25 21:17:33 | |
| 0000808450-20-000092-index.html | 2020-06-25 21:17:33 | |
| 0000808450-20-000092.txt | 2020-06-25 21:17:33 | |
 0000808450-20-000092-xbrl.zip | 58238 | 2020-06-25 21:17:33 |
| a8-k.htm | 76850 | 2020-06-25 21:17:33 |
| a8-k_htm.xml | 7418 | 2020-06-25 21:17:33 |
| exhibit101.htm | 126527 | 2020-06-25 21:17:33 |
| exhibit991.htm | 11937 | 2020-06-25 21:17:33 |
| FilingSummary.xml | 2001 | 2020-06-25 21:17:33 |
| Financial_Report.xlsx | 6024 | 2020-06-25 21:17:33 |
| MetaLinks.json | 24916 | 2020-06-25 21:17:33 |
| nav-20200626.xsd | 4762 | 2020-06-25 21:17:33 |
| nav-20200626_cal.xml | 700 | 2020-06-25 21:17:33 |
| nav-20200626_def.xml | 18068 | 2020-06-25 21:17:33 |
| nav-20200626_lab.xml | 38450 | 2020-06-25 21:17:33 |
| nav-20200626_pre.xml | 19792 | 2020-06-25 21:17:33 |
 navlogoa50.jpg | 12457 | 2020-06-25 21:17:33 |
 pressreleaseheadinga25.jpg | 24365 | 2020-06-25 21:17:33 |
| R1.htm | 46929 | 2020-06-25 21:17:33 |
| report.css | 2767 | 2020-06-25 21:17:33 |
| Show.js | 1085 | 2020-06-25 21:17:33 |