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| 0001213900-23-065043-index.html | 2023-08-09 16:24:58 | |
| 0001213900-23-065043.txt | 2023-08-09 16:24:58 | |
 0001213900-23-065043-xbrl.zip | 496782 | 2023-08-09 16:24:58 |
| ex101_4.htm | 528385 | 2023-08-09 16:24:58 |
| ex311_5.htm | 12415 | 2023-08-09 16:24:58 |
| ex312_6.htm | 9891 | 2023-08-09 16:24:58 |
| ex321_7.htm | 9163 | 2023-08-09 16:24:58 |
| ex42_1.htm | 406530 | 2023-08-09 16:24:58 |
| ex43_2.htm | 2270037 | 2023-08-09 16:24:58 |
| ex45_3.htm | 416752 | 2023-08-09 16:24:58 |
| FilingSummary.xml | 30116 | 2023-08-09 16:24:58 |
| Financial_Report.xlsx | 79540 | 2023-08-09 16:24:58 |
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| nn-20230630.htm | 1858530 | 2023-08-09 16:24:58 |
| nn-20230630.xsd | 46357 | 2023-08-09 16:24:58 |
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| nn-20230630_lab.xml | 806868 | 2023-08-09 16:24:58 |
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| R1.htm | 54905 | 2023-08-09 16:24:58 |
| R10.htm | 16862 | 2023-08-09 16:24:58 |
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| R9.htm | 52151 | 2023-08-09 16:24:58 |
| report.css | 2767 | 2023-08-09 16:24:58 |
| Show.js | 1085 | 2023-08-09 16:24:58 |