Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001227025-21-000095-index-headers.html | 2021-04-29 17:23:23 | |
| 0001227025-21-000095-index.html | 2021-04-29 17:23:23 | |
| 0001227025-21-000095.txt | 2021-04-29 17:23:23 | |
 0001227025-21-000095-xbrl.zip | 287738 | 2021-04-29 17:23:23 |
| exhibit311nptn0331202110qq1.htm | 8772 | 2021-04-29 17:23:23 |
| exhibit312nptn0331202110qq1.htm | 8610 | 2021-04-29 17:23:23 |
| exhibit321nptn0331202110qq1.htm | 8187 | 2021-04-29 17:23:23 |
| FilingSummary.xml | 46603 | 2021-04-29 17:23:23 |
| Financial_Report.xlsx | 98528 | 2021-04-29 17:23:23 |
| MetaLinks.json | 723176 | 2021-04-29 17:23:23 |
| nptn-20210331.htm | 1414033 | 2021-04-29 17:23:23 |
| nptn-20210331.xsd | 55408 | 2021-04-29 17:23:23 |
| nptn-20210331_cal.xml | 112143 | 2021-04-29 17:23:23 |
| nptn-20210331_def.xml | 262835 | 2021-04-29 17:23:23 |
| nptn-20210331_htm.xml | 1210996 | 2021-04-29 17:23:23 |
| nptn-20210331_lab.xml | 666570 | 2021-04-29 17:23:23 |
| nptn-20210331_pre.xml | 449281 | 2021-04-29 17:23:23 |
| R1.htm | 52192 | 2021-04-29 17:23:23 |
| R10.htm | 27735 | 2021-04-29 17:23:23 |
| R11.htm | 28598 | 2021-04-29 17:23:23 |
| R12.htm | 29812 | 2021-04-29 17:23:23 |
| R13.htm | 32226 | 2021-04-29 17:23:23 |
| R14.htm | 81132 | 2021-04-29 17:23:23 |
| R15.htm | 15859 | 2021-04-29 17:23:23 |
| R16.htm | 52461 | 2021-04-29 17:23:23 |
| R17.htm | 33111 | 2021-04-29 17:23:23 |
| R18.htm | 8734 | 2021-04-29 17:23:23 |
| R19.htm | 12614 | 2021-04-29 17:23:23 |
| R2.htm | 86631 | 2021-04-29 17:23:23 |
| R20.htm | 15684 | 2021-04-29 17:23:23 |
| R21.htm | 12077 | 2021-04-29 17:23:23 |
| R22.htm | 32032 | 2021-04-29 17:23:23 |
| R23.htm | 13470 | 2021-04-29 17:23:23 |
| R24.htm | 35676 | 2021-04-29 17:23:23 |
| R25.htm | 20258 | 2021-04-29 17:23:23 |
| R26.htm | 30388 | 2021-04-29 17:23:23 |
| R27.htm | 46647 | 2021-04-29 17:23:23 |
| R28.htm | 28722 | 2021-04-29 17:23:23 |
| R29.htm | 94192 | 2021-04-29 17:23:23 |
| R3.htm | 19092 | 2021-04-29 17:23:23 |
| R30.htm | 15055 | 2021-04-29 17:23:23 |
| R31.htm | 37718 | 2021-04-29 17:23:23 |
| R32.htm | 36323 | 2021-04-29 17:23:23 |
| R33.htm | 13324 | 2021-04-29 17:23:23 |
| R34.htm | 18649 | 2021-04-29 17:23:23 |
| R35.htm | 30860 | 2021-04-29 17:23:23 |
| R36.htm | 9161 | 2021-04-29 17:23:23 |
| R37.htm | 23018 | 2021-04-29 17:23:23 |
| R38.htm | 11960 | 2021-04-29 17:23:23 |
| R39.htm | 13853 | 2021-04-29 17:23:23 |
| R4.htm | 71979 | 2021-04-29 17:23:23 |
| R40.htm | 9463 | 2021-04-29 17:23:23 |
| R41.htm | 29301 | 2021-04-29 17:23:23 |
| R42.htm | 17612 | 2021-04-29 17:23:23 |
| R43.htm | 10784 | 2021-04-29 17:23:23 |
| R44.htm | 23515 | 2021-04-29 17:23:23 |
| R45.htm | 28404 | 2021-04-29 17:23:23 |
| R46.htm | 10096 | 2021-04-29 17:23:23 |
| R47.htm | 14004 | 2021-04-29 17:23:23 |
| R48.htm | 15493 | 2021-04-29 17:23:23 |
| R49.htm | 21215 | 2021-04-29 17:23:23 |
| R5.htm | 22154 | 2021-04-29 17:23:23 |
| R50.htm | 17147 | 2021-04-29 17:23:23 |
| R51.htm | 17674 | 2021-04-29 17:23:23 |
| R52.htm | 9855 | 2021-04-29 17:23:23 |
| R53.htm | 14570 | 2021-04-29 17:23:23 |
| R54.htm | 5637 | 2021-04-29 17:23:23 |
| R55.htm | 15788 | 2021-04-29 17:23:23 |
| R56.htm | 29740 | 2021-04-29 17:23:23 |
| R57.htm | 30814 | 2021-04-29 17:23:23 |
| R58.htm | 50897 | 2021-04-29 17:23:23 |
| R59.htm | 51849 | 2021-04-29 17:23:23 |
| R6.htm | 5521 | 2021-04-29 17:23:23 |
| R60.htm | 15754 | 2021-04-29 17:23:23 |
| R61.htm | 16009 | 2021-04-29 17:23:23 |
| R62.htm | 9453 | 2021-04-29 17:23:23 |
| R63.htm | 8443 | 2021-04-29 17:23:23 |
| R64.htm | 9398 | 2021-04-29 17:23:23 |
| R65.htm | 20527 | 2021-04-29 17:23:23 |
| R66.htm | 10368 | 2021-04-29 17:23:23 |
| R67.htm | 8577 | 2021-04-29 17:23:23 |
| R68.htm | 21240 | 2021-04-29 17:23:23 |
| R69.htm | 13288 | 2021-04-29 17:23:23 |
| R7.htm | 38741 | 2021-04-29 17:23:23 |
| R70.htm | 21554 | 2021-04-29 17:23:23 |
| R71.htm | 17176 | 2021-04-29 17:23:23 |
| R72.htm | 13366 | 2021-04-29 17:23:23 |
| R73.htm | 52713 | 2021-04-29 17:23:23 |
| R74.htm | 25924 | 2021-04-29 17:23:23 |
| R75.htm | 10171 | 2021-04-29 17:23:23 |
| R76.htm | 6459 | 2021-04-29 17:23:23 |
| R8.htm | 83506 | 2021-04-29 17:23:23 |
| R9.htm | 18594 | 2021-04-29 17:23:23 |
| report.css | 2767 | 2021-04-29 17:23:23 |
| Show.js | 1085 | 2021-04-29 17:23:23 |