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|---|---|---|
 0001193125-20-167520-index-headers.html | 2020-06-12 13:09:36 | |
| 0001193125-20-167520-index.html | 2020-06-12 13:09:36 | |
| 0001193125-20-167520.txt | 2020-06-12 13:09:36 | |
 0001193125-20-167520-xbrl.zip | 84496 | 2020-06-12 13:09:36 |
 BarChart1.png | 31879 | 2020-06-12 13:09:36 |
 BarChart2.png | 9231 | 2020-06-12 13:09:36 |
 BarChart3.png | 31227 | 2020-06-12 13:09:36 |
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| nf-20200529_cal.xml | 4767 | 2020-06-12 13:09:36 |
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| R1.htm | 18245 | 2020-06-12 13:09:36 |
| R15.htm | 184901 | 2020-06-12 13:09:36 |
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| R2.htm | 117458 | 2020-06-12 13:09:36 |
| R22.htm | 215512 | 2020-06-12 13:09:36 |
| R23.htm | 7476 | 2020-06-12 13:09:36 |
| R8.htm | 208673 | 2020-06-12 13:09:36 |
| R9.htm | 99564 | 2020-06-12 13:09:36 |
| report.css | 2767 | 2020-06-12 13:09:36 |
| Show.js | 1085 | 2020-06-12 13:09:36 |