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| 0000067716-23-000041.txt | 2023-04-07 17:51:03 | |
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| a2023exhibit99form10.htm | 12198 | 2023-04-07 17:51:03 |
| FilingSummary.xml | 1674 | 2023-04-07 17:51:03 |
| Financial_Report.xlsx | 5716 | 2023-04-07 17:51:03 |
| mdu-20230407.htm | 31687 | 2023-04-07 17:51:03 |
| mdu-20230407.xsd | 2137 | 2023-04-07 17:51:03 |
| mdu-20230407_def.xml | 14762 | 2023-04-07 17:51:03 |
| mdu-20230407_htm.xml | 4279 | 2023-04-07 17:51:03 |
| mdu-20230407_lab.xml | 28551 | 2023-04-07 17:51:03 |
| mdu-20230407_pre.xml | 15382 | 2023-04-07 17:51:03 |
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| report.css | 2767 | 2023-04-07 17:51:03 |
| Show.js | 1085 | 2023-04-07 17:51:03 |