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| 0001564590-20-038089-index.html | 2020-08-07 08:30:40 | |
| 0001564590-20-038089.txt | 2020-08-07 08:30:40 | |
 0001564590-20-038089-xbrl.zip | 115040 | 2020-08-07 08:30:40 |
| FilingSummary.xml | 33661 | 2020-08-07 08:30:40 |
| Financial_Report.xlsx | 69669 | 2020-08-07 08:30:40 |
| nick-10q_20200630.htm | 1736319 | 2020-08-07 08:30:40 |
| nick-20200630.xml | 1701957 | 2020-08-07 08:30:40 |
| nick-20200630.xsd | 48937 | 2020-08-07 08:30:40 |
| nick-20200630_cal.xml | 55930 | 2020-08-07 08:30:40 |
| nick-20200630_def.xml | 137962 | 2020-08-07 08:30:40 |
| nick-20200630_lab.xml | 336195 | 2020-08-07 08:30:40 |
| nick-20200630_pre.xml | 269867 | 2020-08-07 08:30:40 |
| nick-ex311_9.htm | 18336 | 2020-08-07 08:30:40 |
| nick-ex312_7.htm | 18360 | 2020-08-07 08:30:40 |
| nick-ex321_6.htm | 3650 | 2020-08-07 08:30:40 |
| nick-ex322_8.htm | 3604 | 2020-08-07 08:30:40 |
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| report.css | 2767 | 2020-08-07 08:30:40 |
| Show.js | 1085 | 2020-08-07 08:30:40 |