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| 0001193125-18-326090-index.html | 2018-11-14 07:02:55 | |
| 0001193125-18-326090.txt | 2018-11-14 07:02:55 | |
 0001193125-18-326090-xbrl.zip | 82544 | 2018-11-14 07:02:55 |
| d614110d10q.htm | 431504 | 2018-11-14 07:02:55 |
| d614110dex311.htm | 11304 | 2018-11-14 07:02:55 |
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| d614110dex321.htm | 2465 | 2018-11-14 07:02:55 |
| d614110dex322.htm | 2439 | 2018-11-14 07:02:55 |
| FilingSummary.xml | 25264 | 2018-11-14 07:02:55 |
| Financial_Report.xlsx | 45104 | 2018-11-14 07:02:55 |
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| nick-20180930.xsd | 34492 | 2018-11-14 07:02:55 |
| nick-20180930_cal.xml | 34134 | 2018-11-14 07:02:55 |
| nick-20180930_def.xml | 102295 | 2018-11-14 07:02:55 |
| nick-20180930_lab.xml | 276763 | 2018-11-14 07:02:55 |
| nick-20180930_pre.xml | 190621 | 2018-11-14 07:02:55 |
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| R9.htm | 200067 | 2018-11-14 07:02:55 |
| report.css | 2767 | 2018-11-14 07:02:55 |
| Show.js | 1085 | 2018-11-14 07:02:55 |