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|---|---|---|
 0000950170-21-001640-index-headers.html | 2021-09-02 08:31:11 | |
| 0000950170-21-001640-index.html | 2021-09-02 08:31:11 | |
| 0000950170-21-001640.txt | 2021-09-02 08:31:11 | |
 0000950170-21-001640-xbrl.zip | 14146 | 2021-09-02 08:31:11 |
| FilingSummary.xml | 1746 | 2021-09-02 08:31:11 |
| Financial_Report.xlsx | 5696 | 2021-09-02 08:31:11 |
| MetaLinks.json | 18306 | 2021-09-02 08:31:11 |
| nick-20210902.htm | 61311 | 2021-09-02 08:31:11 |
| nick-20210902.xsd | 2514 | 2021-09-02 08:31:11 |
| nick-20210902ex99_1.htm | 13915 | 2021-09-02 08:31:11 |
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 nick-20210902ex99_1s24.jpg | 56090 | 2021-09-02 08:31:11 |
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| nick-20210902_htm.xml | 4693 | 2021-09-02 08:31:11 |
| nick-20210902_lab.xml | 13496 | 2021-09-02 08:31:11 |
| nick-20210902_pre.xml | 11086 | 2021-09-02 08:31:11 |
| R1.htm | 40159 | 2021-09-02 08:31:11 |
| report.css | 2767 | 2021-09-02 08:31:11 |
| Show.js | 1085 | 2021-09-02 08:31:11 |