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|---|---|---|
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| 0000789933-22-000050-index.html | 2022-08-03 16:54:00 | |
| 0000789933-22-000050.txt | 2022-08-03 16:54:00 | |
 0000789933-22-000050-xbrl.zip | 185321 | 2022-08-03 16:54:00 |
| exhibit311q222.htm | 11270 | 2022-08-03 16:54:00 |
| exhibit312q222.htm | 11023 | 2022-08-03 16:54:00 |
| exhibit32q222.htm | 8749 | 2022-08-03 16:54:00 |
| exhibit95q222.htm | 91692 | 2022-08-03 16:54:00 |
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| Financial_Report.xlsx | 55989 | 2022-08-03 16:54:00 |
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| nacco-20220630.htm | 1300788 | 2022-08-03 16:54:00 |
| nacco-20220630.xsd | 24603 | 2022-08-03 16:54:00 |
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| R27.htm | 13389 | 2022-08-03 16:54:00 |
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| R7.htm | 34192 | 2022-08-03 16:54:00 |
| R8.htm | 48082 | 2022-08-03 16:54:00 |
| R9.htm | 4793 | 2022-08-03 16:54:00 |
| report.css | 2767 | 2022-08-03 16:54:00 |
| Show.js | 1085 | 2022-08-03 16:54:00 |