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| 0000878526-20-000047-index.html | 2020-05-06 16:08:01 | |
| 0000878526-20-000047.txt | 2020-05-06 16:08:01 | |
 0000878526-20-000047-xbrl.zip | 213215 | 2020-05-06 16:08:01 |
| exhibit31133120.htm | 17567 | 2020-05-06 16:08:01 |
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| exhibit32133120.htm | 10236 | 2020-05-06 16:08:01 |
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| ntus-20200331.xsd | 37498 | 2020-05-06 16:08:01 |
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| report.css | 2767 | 2020-05-06 16:08:01 |
| Show.js | 1085 | 2020-05-06 16:08:01 |