Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000355811-23-000023-index-headers.html | 2023-04-06 09:26:19 | |
| 0000355811-23-000023-index.html | 2023-04-06 09:26:19 | |
| 0000355811-23-000023.txt | 2023-04-06 09:26:19 | |
 0000355811-23-000023-xbrl.zip | 418067 | 2023-04-06 09:26:19 |
| a2023proxycard.htm | 1310 | 2023-04-06 09:26:19 |
| FilingSummary.xml | 2586 | 2023-04-06 09:26:19 |
| Financial_Report.xlsx | 9007 | 2023-04-06 09:26:19 |
| gntx-20230404.htm | 873527 | 2023-04-06 09:26:19 |
| gntx-20230404.xsd | 3269 | 2023-04-06 09:26:19 |
| gntx-20230404_def.xml | 4191 | 2023-04-06 09:26:19 |
 gntx-20230404_g1.jpg | 54164 | 2023-04-06 09:26:19 |
 gntx-20230404_g2.jpg | 21918 | 2023-04-06 09:26:19 |
 gntx-20230404_g3.jpg | 40724 | 2023-04-06 09:26:19 |
 gntx-20230404_g4.jpg | 43768 | 2023-04-06 09:26:19 |
 gntx-20230404_g5.jpg | 99921 | 2023-04-06 09:26:19 |
 gntx-20230404_g6.jpg | 94410 | 2023-04-06 09:26:19 |
 gntx-20230404_g7.jpg | 90754 | 2023-04-06 09:26:19 |
| gntx-20230404_htm.xml | 67346 | 2023-04-06 09:26:19 |
| gntx-20230404_lab.xml | 5638 | 2023-04-06 09:26:19 |
| gntx-20230404_pre.xml | 3196 | 2023-04-06 09:26:19 |
 image.jpg | 127182 | 2023-04-06 09:26:19 |
 image1.jpg | 89058 | 2023-04-06 09:26:19 |
| MetaLinks.json | 147792 | 2023-04-06 09:26:19 |
| R1.htm | 10841 | 2023-04-06 09:26:19 |
| R2.htm | 102250 | 2023-04-06 09:26:19 |
| report.css | 2767 | 2023-04-06 09:26:19 |
| Show.js | 1085 | 2023-04-06 09:26:19 |