Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-017554-index-headers.html | 2022-08-17 17:14:35 | |
| 0000950170-22-017554-index.html | 2022-08-17 17:14:35 | |
| 0000950170-22-017554.txt | 2022-08-17 17:14:35 | |
 0000950170-22-017554-xbrl.zip | 11591 | 2022-08-17 17:14:35 |
| FilingSummary.xml | 1745 | 2022-08-17 17:14:35 |
| Financial_Report.xlsx | 5719 | 2022-08-17 17:14:35 |
 img16484711_0.jpg | 16023 | 2022-08-17 17:14:35 |
| MetaLinks.json | 17603 | 2022-08-17 17:14:35 |
| nick-20220815.htm | 70038 | 2022-08-17 17:14:35 |
| nick-20220815.xsd | 2479 | 2022-08-17 17:14:35 |
| nick-20220815_htm.xml | 4687 | 2022-08-17 17:14:35 |
| nick-20220815_lab.xml | 13352 | 2022-08-17 17:14:35 |
| nick-20220815_pre.xml | 10942 | 2022-08-17 17:14:35 |
| nick-ex16_1.htm | 18391 | 2022-08-17 17:14:35 |
| R1.htm | 39616 | 2022-08-17 17:14:35 |
| report.css | 2767 | 2022-08-17 17:14:35 |
| Show.js | 1085 | 2022-08-17 17:14:35 |