Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000355811-23-000053-index.html | 2023-10-27 08:00:14 | |
| 0000355811-23-000053.txt | 2023-10-27 08:00:14 | |
 0000355811-23-000053-xbrl.zip | 21513 | 2023-10-27 08:00:14 |
| exhibit99109302023.htm | 163750 | 2023-10-27 08:00:14 |
| FilingSummary.xml | 1695 | 2023-10-27 08:00:14 |
| Financial_Report.xlsx | 5706 | 2023-10-27 08:00:14 |
 gentex-black.jpg | 158578 | 2023-10-27 08:00:14 |
| gntx-20231027.htm | 24727 | 2023-10-27 08:00:14 |
| gntx-20231027.xsd | 1970 | 2023-10-27 08:00:14 |
| gntx-20231027_htm.xml | 2715 | 2023-10-27 08:00:14 |
| gntx-20231027_lab.xml | 24134 | 2023-10-27 08:00:14 |
| gntx-20231027_pre.xml | 12575 | 2023-10-27 08:00:14 |
| MetaLinks.json | 17474 | 2023-10-27 08:00:14 |
| R1.htm | 38110 | 2023-10-27 08:00:14 |
| report.css | 2767 | 2023-10-27 08:00:14 |
| Show.js | 1085 | 2023-10-27 08:00:14 |