Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000950170-22-000940-index.html | 2022-02-09 09:00:46 | |
| 0000950170-22-000940.txt | 2022-02-09 09:00:46 | |
 0000950170-22-000940-xbrl.zip | 191249 | 2022-02-09 09:00:46 |
| FilingSummary.xml | 34225 | 2022-02-09 09:00:46 |
| Financial_Report.xlsx | 72604 | 2022-02-09 09:00:46 |
| MetaLinks.json | 529225 | 2022-02-09 09:00:46 |
| nick-20211231.htm | 2769935 | 2022-02-09 09:00:46 |
| nick-20211231.xsd | 48446 | 2022-02-09 09:00:46 |
| nick-20211231_cal.xml | 47179 | 2022-02-09 09:00:46 |
| nick-20211231_def.xml | 154098 | 2022-02-09 09:00:46 |
| nick-20211231_htm.xml | 2436997 | 2022-02-09 09:00:46 |
| nick-20211231_lab.xml | 350568 | 2022-02-09 09:00:46 |
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| nick-ex31_1.htm | 18490 | 2022-02-09 09:00:46 |
| nick-ex31_2.htm | 18518 | 2022-02-09 09:00:46 |
| nick-ex32_1.htm | 5733 | 2022-02-09 09:00:46 |
| nick-ex32_2.htm | 5708 | 2022-02-09 09:00:46 |
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| R9.htm | 119542 | 2022-02-09 09:00:46 |
| report.css | 2767 | 2022-02-09 09:00:46 |
| Show.js | 1085 | 2022-02-09 09:00:46 |