Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000355811-22-000032-index.html | 2022-07-22 08:00:45 | |
| 0000355811-22-000032.txt | 2022-07-22 08:00:45 | |
 0000355811-22-000032-xbrl.zip | 23197 | 2022-07-22 08:00:45 |
| exhibit99106302022.htm | 165519 | 2022-07-22 08:00:45 |
| FilingSummary.xml | 1718 | 2022-07-22 08:00:45 |
| Financial_Report.xlsx | 5707 | 2022-07-22 08:00:45 |
 gentex-blacka.jpg | 158578 | 2022-07-22 08:00:45 |
| gntx-20220722.htm | 32616 | 2022-07-22 08:00:45 |
| gntx-20220722.xsd | 1968 | 2022-07-22 08:00:45 |
| gntx-20220722_htm.xml | 10813 | 2022-07-22 08:00:45 |
| gntx-20220722_lab.xml | 24132 | 2022-07-22 08:00:45 |
| gntx-20220722_pre.xml | 12573 | 2022-07-22 08:00:45 |
| MetaLinks.json | 17042 | 2022-07-22 08:00:45 |
| R1.htm | 38570 | 2022-07-22 08:00:45 |
| report.css | 2767 | 2022-07-22 08:00:45 |
| Show.js | 1085 | 2022-07-22 08:00:45 |