Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000067716-24-000013-index-headers.html | 2024-02-21 15:35:31 | |
| 0000067716-24-000013-index.html | 2024-02-21 15:35:31 | |
| 0000067716-24-000013.txt | 2024-02-21 15:35:31 | |
 0000067716-24-000013-xbrl.zip | 46209 | 2024-02-21 15:35:31 |
| exhibit101.htm | 138721 | 2024-02-21 15:35:31 |
| exhibit102.htm | 89697 | 2024-02-21 15:35:31 |
| FilingSummary.xml | 1651 | 2024-02-21 15:35:31 |
| Financial_Report.xlsx | 5713 | 2024-02-21 15:35:31 |
| mdu-20240215.htm | 32366 | 2024-02-21 15:35:31 |
| mdu-20240215.xsd | 2139 | 2024-02-21 15:35:31 |
| mdu-20240215_def.xml | 14719 | 2024-02-21 15:35:31 |
| mdu-20240215_htm.xml | 2827 | 2024-02-21 15:35:31 |
| mdu-20240215_lab.xml | 28553 | 2024-02-21 15:35:31 |
| mdu-20240215_pre.xml | 15384 | 2024-02-21 15:35:31 |
| MetaLinks.json | 19866 | 2024-02-21 15:35:31 |
| R1.htm | 39854 | 2024-02-21 15:35:31 |
| report.css | 2767 | 2024-02-21 15:35:31 |
| Show.js | 1085 | 2024-02-21 15:35:31 |