Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-011843-index-headers.html | 2021-05-12 16:31:12 | |
| 0001437749-21-011843-index.html | 2021-05-12 16:31:12 | |
| 0001437749-21-011843.txt | 2021-05-12 16:31:12 | |
 0001437749-21-011843-xbrl.zip | 223016 | 2021-05-12 16:31:12 |
| ex_246802.htm | 9148 | 2021-05-12 16:31:12 |
| ex_246803.htm | 9360 | 2021-05-12 16:31:12 |
| ex_246804.htm | 4714 | 2021-05-12 16:31:12 |
| ex_246805.htm | 4954 | 2021-05-12 16:31:12 |
| FilingSummary.xml | 39715 | 2021-05-12 16:31:12 |
| Financial_Report.xlsx | 86024 | 2021-05-12 16:31:12 |
| MetaLinks.json | 654531 | 2021-05-12 16:31:12 |
| nksh-20210331.xsd | 66411 | 2021-05-12 16:31:12 |
| nksh-20210331_cal.xml | 68701 | 2021-05-12 16:31:12 |
| nksh-20210331_def.xml | 449247 | 2021-05-12 16:31:12 |
| nksh-20210331_lab.xml | 371622 | 2021-05-12 16:31:12 |
| nksh-20210331_pre.xml | 477445 | 2021-05-12 16:31:12 |
| nksh20210331_10q.htm | 2164917 | 2021-05-12 16:31:12 |
| nksh20210331_10q_htm.xml | 2468531 | 2021-05-12 16:31:12 |
| R1.htm | 52483 | 2021-05-12 16:31:12 |
| R10.htm | 27540 | 2021-05-12 16:31:12 |
| R11.htm | 17177 | 2021-05-12 16:31:12 |
| R12.htm | 482214 | 2021-05-12 16:31:12 |
| R13.htm | 79470 | 2021-05-12 16:31:12 |
| R14.htm | 18970 | 2021-05-12 16:31:12 |
| R15.htm | 192632 | 2021-05-12 16:31:12 |
| R16.htm | 23745 | 2021-05-12 16:31:12 |
| R17.htm | 28900 | 2021-05-12 16:31:12 |
| R18.htm | 34869 | 2021-05-12 16:31:12 |
| R19.htm | 16760 | 2021-05-12 16:31:12 |
| R2.htm | 85864 | 2021-05-12 16:31:12 |
| R20.htm | 453877 | 2021-05-12 16:31:12 |
| R21.htm | 75947 | 2021-05-12 16:31:12 |
| R22.htm | 15366 | 2021-05-12 16:31:12 |
| R23.htm | 172642 | 2021-05-12 16:31:12 |
| R24.htm | 22893 | 2021-05-12 16:31:12 |
| R25.htm | 17875 | 2021-05-12 16:31:12 |
| R26.htm | 29763 | 2021-05-12 16:31:12 |
| R27.htm | 19236 | 2021-05-12 16:31:12 |
| R28.htm | 33624 | 2021-05-12 16:31:12 |
| R29.htm | 33068 | 2021-05-12 16:31:12 |
| R3.htm | 17552 | 2021-05-12 16:31:12 |
| R30.htm | 41882 | 2021-05-12 16:31:12 |
| R31.htm | 5711 | 2021-05-12 16:31:12 |
| R32.htm | 16732 | 2021-05-12 16:31:12 |
| R33.htm | 25947 | 2021-05-12 16:31:12 |
| R34.htm | 35711 | 2021-05-12 16:31:12 |
| R35.htm | 28800 | 2021-05-12 16:31:12 |
| R36.htm | 72925 | 2021-05-12 16:31:12 |
| R37.htm | 60969 | 2021-05-12 16:31:12 |
| R38.htm | 10786 | 2021-05-12 16:31:12 |
| R39.htm | 23199 | 2021-05-12 16:31:12 |
| R4.htm | 102864 | 2021-05-12 16:31:12 |
| R40.htm | 21819 | 2021-05-12 16:31:12 |
| R41.htm | 28028 | 2021-05-12 16:31:12 |
| R42.htm | 17414 | 2021-05-12 16:31:12 |
| R43.htm | 4681 | 2021-05-12 16:31:12 |
| R44.htm | 20640 | 2021-05-12 16:31:12 |
| R45.htm | 6187 | 2021-05-12 16:31:12 |
| R46.htm | 15650 | 2021-05-12 16:31:12 |
| R47.htm | 21849 | 2021-05-12 16:31:12 |
| R48.htm | 19671 | 2021-05-12 16:31:12 |
| R49.htm | 7357 | 2021-05-12 16:31:12 |
| R5.htm | 24936 | 2021-05-12 16:31:12 |
| R50.htm | 16212 | 2021-05-12 16:31:12 |
| R51.htm | 37421 | 2021-05-12 16:31:12 |
| R52.htm | 19081 | 2021-05-12 16:31:12 |
| R53.htm | 9538 | 2021-05-12 16:31:12 |
| R54.htm | 18676 | 2021-05-12 16:31:12 |
| R55.htm | 22454 | 2021-05-12 16:31:12 |
| R56.htm | 23134 | 2021-05-12 16:31:12 |
| R6.htm | 6268 | 2021-05-12 16:31:12 |
| R7.htm | 23590 | 2021-05-12 16:31:12 |
| R8.htm | 8696 | 2021-05-12 16:31:12 |
| R9.htm | 108698 | 2021-05-12 16:31:12 |
| report.css | 2767 | 2021-05-12 16:31:12 |
| Show.js | 1085 | 2021-05-12 16:31:12 |