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|---|---|---|
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| 0000950170-23-002704-index.html | 2023-02-14 08:00:43 | |
| 0000950170-23-002704.txt | 2023-02-14 08:00:43 | |
 0000950170-23-002704-xbrl.zip | 312248 | 2023-02-14 08:00:43 |
| FilingSummary.xml | 37056 | 2023-02-14 08:00:43 |
| Financial_Report.xlsx | 82365 | 2023-02-14 08:00:43 |
| MetaLinks.json | 667160 | 2023-02-14 08:00:43 |
| nick-20221231.htm | 3005186 | 2023-02-14 08:00:43 |
| nick-20221231.xsd | 58035 | 2023-02-14 08:00:43 |
| nick-20221231_cal.xml | 55035 | 2023-02-14 08:00:43 |
| nick-20221231_def.xml | 179166 | 2023-02-14 08:00:43 |
| nick-20221231_htm.xml | 2705327 | 2023-02-14 08:00:43 |
| nick-20221231_lab.xml | 416291 | 2023-02-14 08:00:43 |
| nick-20221231_pre.xml | 325935 | 2023-02-14 08:00:43 |
| nick-ex10_1.htm | 458751 | 2023-02-14 08:00:43 |
| nick-ex10_2.htm | 793687 | 2023-02-14 08:00:43 |
| nick-ex31_1.htm | 20289 | 2023-02-14 08:00:43 |
| nick-ex31_2.htm | 20346 | 2023-02-14 08:00:43 |
| nick-ex32_1.htm | 6145 | 2023-02-14 08:00:43 |
| nick-ex32_2.htm | 6144 | 2023-02-14 08:00:43 |
| R1.htm | 53106 | 2023-02-14 08:00:43 |
| R10.htm | 517979 | 2023-02-14 08:00:43 |
| R11.htm | 40906 | 2023-02-14 08:00:43 |
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| R9.htm | 134581 | 2023-02-14 08:00:43 |
| report.css | 2767 | 2023-02-14 08:00:43 |
| Show.js | 1085 | 2023-02-14 08:00:43 |