Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-025630-index-headers.html | 2022-11-03 06:05:12 | |
| 0001437749-22-025630-index.html | 2022-11-03 06:05:12 | |
| 0001437749-22-025630.txt | 2022-11-03 06:05:12 | |
 0001437749-22-025630-xbrl.zip | 139186 | 2022-11-03 06:05:12 |
| ex_438499.htm | 13731 | 2022-11-03 06:05:12 |
| ex_438500.htm | 12094 | 2022-11-03 06:05:12 |
| ex_438501.htm | 8517 | 2022-11-03 06:05:12 |
| ex_438502.htm | 9305 | 2022-11-03 06:05:12 |
| FilingSummary.xml | 46016 | 2022-11-03 06:05:12 |
| Financial_Report.xlsx | 77726 | 2022-11-03 06:05:12 |
| MetaLinks.json | 546286 | 2022-11-03 06:05:12 |
| nath-20220925.xsd | 62627 | 2022-11-03 06:05:12 |
| nath-20220925_cal.xml | 49927 | 2022-11-03 06:05:12 |
| nath-20220925_def.xml | 328274 | 2022-11-03 06:05:12 |
| nath-20220925_lab.xml | 285554 | 2022-11-03 06:05:12 |
| nath-20220925_pre.xml | 371335 | 2022-11-03 06:05:12 |
| nath20220930_10q.htm | 1132194 | 2022-11-03 06:05:12 |
| nath20220930_10q_htm.xml | 1038057 | 2022-11-03 06:05:12 |
| R1.htm | 51820 | 2022-11-03 06:05:12 |
| R10.htm | 59270 | 2022-11-03 06:05:12 |
| R11.htm | 6314 | 2022-11-03 06:05:12 |
| R12.htm | 16641 | 2022-11-03 06:05:12 |
| R13.htm | 24798 | 2022-11-03 06:05:12 |
| R14.htm | 13380 | 2022-11-03 06:05:12 |
| R15.htm | 6336 | 2022-11-03 06:05:12 |
| R16.htm | 7307 | 2022-11-03 06:05:12 |
| R17.htm | 20669 | 2022-11-03 06:05:12 |
| R18.htm | 10070 | 2022-11-03 06:05:12 |
| R19.htm | 52847 | 2022-11-03 06:05:12 |
| R2.htm | 103658 | 2022-11-03 06:05:12 |
| R20.htm | 38948 | 2022-11-03 06:05:12 |
| R21.htm | 14495 | 2022-11-03 06:05:12 |
| R22.htm | 15536 | 2022-11-03 06:05:12 |
| R23.htm | 71685 | 2022-11-03 06:05:12 |
| R24.htm | 6528 | 2022-11-03 06:05:12 |
| R25.htm | 5361 | 2022-11-03 06:05:12 |
| R26.htm | 67519 | 2022-11-03 06:05:12 |
| R27.htm | 56404 | 2022-11-03 06:05:12 |
| R28.htm | 11469 | 2022-11-03 06:05:12 |
| R29.htm | 24085 | 2022-11-03 06:05:12 |
| R3.htm | 15791 | 2022-11-03 06:05:12 |
| R30.htm | 12745 | 2022-11-03 06:05:12 |
| R31.htm | 19646 | 2022-11-03 06:05:12 |
| R32.htm | 44302 | 2022-11-03 06:05:12 |
| R33.htm | 37477 | 2022-11-03 06:05:12 |
| R34.htm | 10684 | 2022-11-03 06:05:12 |
| R35.htm | 73077 | 2022-11-03 06:05:12 |
| R36.htm | 3779 | 2022-11-03 06:05:12 |
| R37.htm | 8408 | 2022-11-03 06:05:12 |
| R38.htm | 13680 | 2022-11-03 06:05:12 |
| R39.htm | 20615 | 2022-11-03 06:05:12 |
| R4.htm | 84169 | 2022-11-03 06:05:12 |
| R40.htm | 9914 | 2022-11-03 06:05:12 |
| R41.htm | 6165 | 2022-11-03 06:05:12 |
| R42.htm | 7626 | 2022-11-03 06:05:12 |
| R43.htm | 2895 | 2022-11-03 06:05:12 |
| R44.htm | 14668 | 2022-11-03 06:05:12 |
| R45.htm | 3427 | 2022-11-03 06:05:12 |
| R46.htm | 34179 | 2022-11-03 06:05:12 |
| R47.htm | 3148 | 2022-11-03 06:05:12 |
| R48.htm | 5914 | 2022-11-03 06:05:12 |
| R49.htm | 2532 | 2022-11-03 06:05:12 |
| R5.htm | 48878 | 2022-11-03 06:05:12 |
| R50.htm | 13853 | 2022-11-03 06:05:12 |
| R51.htm | 8046 | 2022-11-03 06:05:12 |
| R52.htm | 10873 | 2022-11-03 06:05:12 |
| R53.htm | 3026 | 2022-11-03 06:05:12 |
| R54.htm | 25858 | 2022-11-03 06:05:12 |
| R55.htm | 16899 | 2022-11-03 06:05:12 |
| R56.htm | 31614 | 2022-11-03 06:05:12 |
| R57.htm | 7904 | 2022-11-03 06:05:12 |
| R58.htm | 6848 | 2022-11-03 06:05:12 |
| R59.htm | 22619 | 2022-11-03 06:05:12 |
| R6.htm | 88955 | 2022-11-03 06:05:12 |
| R60.htm | 23429 | 2022-11-03 06:05:12 |
| R61.htm | 10458 | 2022-11-03 06:05:12 |
| R62.htm | 5470 | 2022-11-03 06:05:12 |
| R63.htm | 6614 | 2022-11-03 06:05:12 |
| R64.htm | 15594 | 2022-11-03 06:05:12 |
| R65.htm | 3570 | 2022-11-03 06:05:12 |
| R66.htm | 5476 | 2022-11-03 06:05:12 |
| R67.htm | 46741 | 2022-11-03 06:05:12 |
| R68.htm | 3814 | 2022-11-03 06:05:12 |
| R7.htm | 12257 | 2022-11-03 06:05:12 |
| R8.htm | 6520 | 2022-11-03 06:05:12 |
| R9.htm | 68842 | 2022-11-03 06:05:12 |
| report.css | 2767 | 2022-11-03 06:05:12 |
| Show.js | 1085 | 2022-11-03 06:05:12 |