Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-010671-index-headers.html | 2022-05-25 17:01:34 | |
| 0000950170-22-010671-index.html | 2022-05-25 17:01:34 | |
| 0000950170-22-010671.txt | 2022-05-25 17:01:34 | |
 0000950170-22-010671-xbrl.zip | 17346 | 2022-05-25 17:01:34 |
| FilingSummary.xml | 1743 | 2022-05-25 17:01:34 |
| Financial_Report.xlsx | 5694 | 2022-05-25 17:01:34 |
 img246915618_0.jpg | 40171 | 2022-05-25 17:01:34 |
 img246915618_1.jpg | 40938 | 2022-05-25 17:01:34 |
| MetaLinks.json | 17603 | 2022-05-25 17:01:34 |
| nick-20220525.htm | 62216 | 2022-05-25 17:01:34 |
| nick-20220525.xsd | 2479 | 2022-05-25 17:01:34 |
| nick-20220525_htm.xml | 4687 | 2022-05-25 17:01:34 |
| nick-20220525_lab.xml | 13352 | 2022-05-25 17:01:34 |
| nick-20220525_pre.xml | 10942 | 2022-05-25 17:01:34 |
| nick-ex99_1.htm | 50116 | 2022-05-25 17:01:34 |
| R1.htm | 40246 | 2022-05-25 17:01:34 |
| report.css | 2767 | 2022-05-25 17:01:34 |
| Show.js | 1085 | 2022-05-25 17:01:34 |