Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000355811-25-000003-index-headers.html | 2025-01-02 11:39:32 | |
| 0000355811-25-000003-index.html | 2025-01-02 11:39:32 | |
| 0000355811-25-000003.txt | 2025-01-02 11:39:32 | |
 0000355811-25-000003-xbrl.zip | 11770 | 2025-01-02 11:39:32 |
| exhibit99101022025.htm | 9708 | 2025-01-02 11:39:32 |
| FilingSummary.xml | 1695 | 2025-01-02 11:39:32 |
| Financial_Report.xlsx | 5710 | 2025-01-02 11:39:32 |
 gentex-black.jpg | 158578 | 2025-01-02 11:39:32 |
| gntx-20250101.htm | 25111 | 2025-01-02 11:39:32 |
| gntx-20250101.xsd | 1851 | 2025-01-02 11:39:32 |
| gntx-20250101_htm.xml | 2715 | 2025-01-02 11:39:32 |
| gntx-20250101_lab.xml | 21880 | 2025-01-02 11:39:32 |
| gntx-20250101_pre.xml | 12575 | 2025-01-02 11:39:32 |
| MetaLinks.json | 17474 | 2025-01-02 11:39:32 |
| R1.htm | 38110 | 2025-01-02 11:39:32 |
| report.css | 2767 | 2025-01-02 11:39:32 |
| Show.js | 1085 | 2025-01-02 11:39:32 |