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| 0000789933-24-000046-index.html | 2024-07-31 16:47:53 | |
| 0000789933-24-000046.txt | 2024-07-31 16:47:53 | |
 0000789933-24-000046-xbrl.zip | 181459 | 2024-07-31 16:47:53 |
| exhibit311q224.htm | 11167 | 2024-07-31 16:47:53 |
| exhibit312q224.htm | 10927 | 2024-07-31 16:47:53 |
| exhibit31ii-certificateofa.htm | 9730 | 2024-07-31 16:47:53 |
| exhibit32q224.htm | 8652 | 2024-07-31 16:47:53 |
| exhibit95q224.htm | 92034 | 2024-07-31 16:47:53 |
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| Financial_Report.xlsx | 61660 | 2024-07-31 16:47:53 |
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| nacco-20240630.htm | 1179418 | 2024-07-31 16:47:53 |
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| R19.htm | 26972 | 2024-07-31 16:47:53 |
| R2.htm | 128768 | 2024-07-31 16:47:53 |
| R20.htm | 5912 | 2024-07-31 16:47:53 |
| R21.htm | 33740 | 2024-07-31 16:47:53 |
| R22.htm | 11795 | 2024-07-31 16:47:53 |
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| R27.htm | 15428 | 2024-07-31 16:47:53 |
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| R3.htm | 11239 | 2024-07-31 16:47:53 |
| R30.htm | 8724 | 2024-07-31 16:47:53 |
| R31.htm | 4682 | 2024-07-31 16:47:53 |
| R32.htm | 19277 | 2024-07-31 16:47:53 |
| R33.htm | 16344 | 2024-07-31 16:47:53 |
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| R7.htm | 38135 | 2024-07-31 16:47:53 |
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| report.css | 2767 | 2024-07-31 16:47:53 |
| Show.js | 1085 | 2024-07-31 16:47:53 |