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| 0001437749-19-002336-index.html | 2019-02-12 16:15:51 | |
| 0001437749-19-002336.txt | 2019-02-12 16:15:51 | |
 0001437749-19-002336-xbrl.zip | 118717 | 2019-02-12 16:15:51 |
| ex_133854.htm | 9242 | 2019-02-12 16:15:51 |
| ex_133855.htm | 9244 | 2019-02-12 16:15:51 |
| ex_133856.htm | 5693 | 2019-02-12 16:15:51 |
| FilingSummary.xml | 27210 | 2019-02-12 16:15:51 |
| Financial_Report.xlsx | 46361 | 2019-02-12 16:15:51 |
| naii-20181231.xml | 1240025 | 2019-02-12 16:15:51 |
| naii-20181231.xsd | 40079 | 2019-02-12 16:15:51 |
| naii-20181231_cal.xml | 38153 | 2019-02-12 16:15:51 |
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| naii-20181231_lab.xml | 264426 | 2019-02-12 16:15:51 |
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| naii20181231_10q.htm | 749399 | 2019-02-12 16:15:51 |
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| report.css | 2767 | 2019-02-12 16:15:51 |
| Show.js | 1085 | 2019-02-12 16:15:51 |