Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-19-009324-index-headers.html | 2019-05-09 16:59:26 | |
| 0001437749-19-009324-index.html | 2019-05-09 16:59:26 | |
| 0001437749-19-009324.txt | 2019-05-09 16:59:26 | |
 0001437749-19-009324-xbrl.zip | 156281 | 2019-05-09 16:59:26 |
| ex_142421.htm | 13718 | 2019-05-09 16:59:26 |
| ex_142422.htm | 13657 | 2019-05-09 16:59:26 |
| ex_142423.htm | 7257 | 2019-05-09 16:59:26 |
| FilingSummary.xml | 43990 | 2019-05-09 16:59:26 |
| Financial_Report.xlsx | 72067 | 2019-05-09 16:59:26 |
| nhc-20190331.xml | 1375514 | 2019-05-09 16:59:26 |
| nhc-20190331.xsd | 67437 | 2019-05-09 16:59:26 |
| nhc-20190331_cal.xml | 78929 | 2019-05-09 16:59:26 |
| nhc-20190331_def.xml | 433324 | 2019-05-09 16:59:26 |
| nhc-20190331_lab.xml | 403913 | 2019-05-09 16:59:26 |
| nhc-20190331_pre.xml | 476113 | 2019-05-09 16:59:26 |
| nhc20190331_10q.htm | 1161342 | 2019-05-09 16:59:26 |
 nhc20190331_10qimg001.jpg | 6273 | 2019-05-09 16:59:26 |
| R1.htm | 27752 | 2019-05-09 16:59:26 |
| R10.htm | 46125 | 2019-05-09 16:59:26 |
| R11.htm | 37849 | 2019-05-09 16:59:26 |
| R12.htm | 29314 | 2019-05-09 16:59:26 |
| R13.htm | 16128 | 2019-05-09 16:59:26 |
| R14.htm | 107519 | 2019-05-09 16:59:26 |
| R15.htm | 84513 | 2019-05-09 16:59:26 |
| R16.htm | 26338 | 2019-05-09 16:59:26 |
| R17.htm | 71422 | 2019-05-09 16:59:26 |
| R18.htm | 66286 | 2019-05-09 16:59:26 |
| R19.htm | 20651 | 2019-05-09 16:59:26 |
| R2.htm | 65086 | 2019-05-09 16:59:26 |
| R20.htm | 5958 | 2019-05-09 16:59:26 |
| R21.htm | 53225 | 2019-05-09 16:59:26 |
| R22.htm | 10245 | 2019-05-09 16:59:26 |
| R23.htm | 16269 | 2019-05-09 16:59:26 |
| R24.htm | 77322 | 2019-05-09 16:59:26 |
| R25.htm | 23898 | 2019-05-09 16:59:26 |
| R26.htm | 23527 | 2019-05-09 16:59:26 |
| R27.htm | 14028 | 2019-05-09 16:59:26 |
| R28.htm | 104396 | 2019-05-09 16:59:26 |
| R29.htm | 68754 | 2019-05-09 16:59:26 |
| R3.htm | 23502 | 2019-05-09 16:59:26 |
| R30.htm | 23446 | 2019-05-09 16:59:26 |
| R31.htm | 63748 | 2019-05-09 16:59:26 |
| R32.htm | 59666 | 2019-05-09 16:59:26 |
| R33.htm | 17965 | 2019-05-09 16:59:26 |
| R34.htm | 53787 | 2019-05-09 16:59:26 |
| R35.htm | 12023 | 2019-05-09 16:59:26 |
| R36.htm | 34067 | 2019-05-09 16:59:26 |
| R37.htm | 5583 | 2019-05-09 16:59:26 |
| R38.htm | 15542 | 2019-05-09 16:59:26 |
| R39.htm | 14539 | 2019-05-09 16:59:26 |
| R4.htm | 125026 | 2019-05-09 16:59:26 |
| R40.htm | 9771 | 2019-05-09 16:59:26 |
| R41.htm | 15286 | 2019-05-09 16:59:26 |
| R42.htm | 6548 | 2019-05-09 16:59:26 |
| R43.htm | 9869 | 2019-05-09 16:59:26 |
| R44.htm | 3175 | 2019-05-09 16:59:26 |
| R45.htm | 50526 | 2019-05-09 16:59:26 |
| R46.htm | 49060 | 2019-05-09 16:59:26 |
| R47.htm | 15740 | 2019-05-09 16:59:26 |
| R48.htm | 26426 | 2019-05-09 16:59:26 |
| R49.htm | 44777 | 2019-05-09 16:59:26 |
| R5.htm | 9333 | 2019-05-09 16:59:26 |
| R50.htm | 7723 | 2019-05-09 16:59:26 |
| R51.htm | 4923 | 2019-05-09 16:59:26 |
| R52.htm | 24446 | 2019-05-09 16:59:26 |
| R53.htm | 20122 | 2019-05-09 16:59:26 |
| R54.htm | 23245 | 2019-05-09 16:59:26 |
| R55.htm | 8624 | 2019-05-09 16:59:26 |
| R56.htm | 27154 | 2019-05-09 16:59:26 |
| R57.htm | 42720 | 2019-05-09 16:59:26 |
| R58.htm | 8817 | 2019-05-09 16:59:26 |
| R59.htm | 13098 | 2019-05-09 16:59:26 |
| R6.htm | 89188 | 2019-05-09 16:59:26 |
| R60.htm | 9589 | 2019-05-09 16:59:26 |
| R61.htm | 8151 | 2019-05-09 16:59:26 |
| R62.htm | 10436 | 2019-05-09 16:59:26 |
| R63.htm | 28690 | 2019-05-09 16:59:26 |
| R64.htm | 18531 | 2019-05-09 16:59:26 |
| R65.htm | 20551 | 2019-05-09 16:59:26 |
| R66.htm | 16997 | 2019-05-09 16:59:26 |
| R7.htm | 45713 | 2019-05-09 16:59:26 |
| R8.htm | 4763 | 2019-05-09 16:59:26 |
| R9.htm | 7186 | 2019-05-09 16:59:26 |
| report.css | 2767 | 2019-05-09 16:59:26 |
| Show.js | 1085 | 2019-05-09 16:59:26 |