Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-21-001647-index-headers.html | 2021-09-02 13:01:29 | |
| 0000950170-21-001647-index.html | 2021-09-02 13:01:29 | |
| 0000950170-21-001647.txt | 2021-09-02 13:01:29 | |
 0000950170-21-001647-xbrl.zip | 9664 | 2021-09-02 13:01:29 |
| FilingSummary.xml | 1705 | 2021-09-02 13:01:29 |
| Financial_Report.xlsx | 5697 | 2021-09-02 13:01:29 |
| MetaLinks.json | 18306 | 2021-09-02 13:01:29 |
| nick-20210902.htm | 89866 | 2021-09-02 13:01:29 |
| nick-20210902.xsd | 2514 | 2021-09-02 13:01:29 |
| nick-20210902_htm.xml | 4693 | 2021-09-02 13:01:29 |
| nick-20210902_lab.xml | 13496 | 2021-09-02 13:01:29 |
| nick-20210902_pre.xml | 11086 | 2021-09-02 13:01:29 |
| R1.htm | 40158 | 2021-09-02 13:01:29 |
| report.css | 2766 | 2021-09-02 13:01:29 |
| Show.js | 1084 | 2021-09-02 13:01:29 |