Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-043019-index-headers.html | 2023-08-16 16:27:07 | |
| 0000950170-23-043019-index.html | 2023-08-16 16:27:07 | |
| 0000950170-23-043019.txt | 2023-08-16 16:27:07 | |
 0000950170-23-043019-xbrl.zip | 186891 | 2023-08-16 16:27:07 |
| FilingSummary.xml | 32961 | 2023-08-16 16:27:07 |
| Financial_Report.xlsx | 74054 | 2023-08-16 16:27:07 |
| MetaLinks.json | 616036 | 2023-08-16 16:27:07 |
| nick-20230630.htm | 2581435 | 2023-08-16 16:27:07 |
| nick-20230630.xsd | 50828 | 2023-08-16 16:27:07 |
| nick-20230630_cal.xml | 42382 | 2023-08-16 16:27:07 |
| nick-20230630_def.xml | 133749 | 2023-08-16 16:27:07 |
| nick-20230630_htm.xml | 2820511 | 2023-08-16 16:27:07 |
| nick-20230630_lab.xml | 334176 | 2023-08-16 16:27:07 |
| nick-20230630_pre.xml | 262808 | 2023-08-16 16:27:07 |
| nick-ex31_1.htm | 20264 | 2023-08-16 16:27:07 |
| nick-ex31_2.htm | 20321 | 2023-08-16 16:27:07 |
| nick-ex32_1.htm | 6143 | 2023-08-16 16:27:07 |
| nick-ex32_2.htm | 6142 | 2023-08-16 16:27:07 |
| R1.htm | 53106 | 2023-08-16 16:27:07 |
| R10.htm | 26732 | 2023-08-16 16:27:07 |
| R11.htm | 11631 | 2023-08-16 16:27:07 |
| R12.htm | 89848 | 2023-08-16 16:27:07 |
| R13.htm | 133329 | 2023-08-16 16:27:07 |
| R14.htm | 9285 | 2023-08-16 16:27:07 |
| R15.htm | 46774 | 2023-08-16 16:27:07 |
| R16.htm | 45733 | 2023-08-16 16:27:07 |
| R17.htm | 22644 | 2023-08-16 16:27:07 |
| R18.htm | 73476 | 2023-08-16 16:27:07 |
| R19.htm | 746082 | 2023-08-16 16:27:07 |
| R2.htm | 73287 | 2023-08-16 16:27:07 |
| R20.htm | 19579 | 2023-08-16 16:27:07 |
| R21.htm | 84471 | 2023-08-16 16:27:07 |
| R22.htm | 121971 | 2023-08-16 16:27:07 |
| R23.htm | 43661 | 2023-08-16 16:27:07 |
| R24.htm | 44321 | 2023-08-16 16:27:07 |
| R25.htm | 10665 | 2023-08-16 16:27:07 |
| R26.htm | 4770 | 2023-08-16 16:27:07 |
| R27.htm | 46660 | 2023-08-16 16:27:07 |
| R28.htm | 8392 | 2023-08-16 16:27:07 |
| R29.htm | 24048 | 2023-08-16 16:27:07 |
| R3.htm | 20779 | 2023-08-16 16:27:07 |
| R30.htm | 13357 | 2023-08-16 16:27:07 |
| R31.htm | 30471 | 2023-08-16 16:27:07 |
| R32.htm | 36583 | 2023-08-16 16:27:07 |
| R33.htm | 121739 | 2023-08-16 16:27:07 |
| R34.htm | 25106 | 2023-08-16 16:27:07 |
| R35.htm | 10830 | 2023-08-16 16:27:07 |
| R36.htm | 30784 | 2023-08-16 16:27:07 |
| R37.htm | 7597 | 2023-08-16 16:27:07 |
| R38.htm | 13086 | 2023-08-16 16:27:07 |
| R39.htm | 10688 | 2023-08-16 16:27:07 |
| R4.htm | 66202 | 2023-08-16 16:27:07 |
| R40.htm | 16096 | 2023-08-16 16:27:07 |
| R41.htm | 14346 | 2023-08-16 16:27:07 |
| R42.htm | 8851 | 2023-08-16 16:27:07 |
| R43.htm | 10289 | 2023-08-16 16:27:07 |
| R44.htm | 12100 | 2023-08-16 16:27:07 |
| R45.htm | 22737 | 2023-08-16 16:27:07 |
| R46.htm | 3937 | 2023-08-16 16:27:07 |
| R47.htm | 6670 | 2023-08-16 16:27:07 |
| R48.htm | 15465 | 2023-08-16 16:27:07 |
| R49.htm | 24716 | 2023-08-16 16:27:07 |
| R5.htm | 40974 | 2023-08-16 16:27:07 |
| R6.htm | 101243 | 2023-08-16 16:27:07 |
| R7.htm | 20670 | 2023-08-16 16:27:07 |
| R8.htm | 77044 | 2023-08-16 16:27:07 |
| R9.htm | 754325 | 2023-08-16 16:27:07 |
| report.css | 2767 | 2023-08-16 16:27:07 |
| Show.js | 1085 | 2023-08-16 16:27:07 |