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| 0000789933-19-000029-index.html | 2019-05-01 17:07:03 | |
| 0000789933-19-000029.txt | 2019-05-01 17:07:03 | |
 0000789933-19-000029-xbrl.zip | 118774 | 2019-05-01 17:07:03 |
| exhibit311q119.htm | 14726 | 2019-05-01 17:07:03 |
| exhibit312q119.htm | 14719 | 2019-05-01 17:07:03 |
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| Financial_Report.xlsx | 47078 | 2019-05-01 17:07:03 |
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| nacco-20190331.xsd | 30061 | 2019-05-01 17:07:03 |
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| report.css | 2767 | 2019-05-01 17:07:03 |
| Show.js | 1085 | 2019-05-01 17:07:03 |