Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000355811-21-000024-index-headers.html | 2021-05-25 08:59:12 | |
| 0000355811-21-000024-index.html | 2021-05-25 08:59:12 | |
| 0000355811-21-000024.txt | 2021-05-25 08:59:12 | |
 0000355811-21-000024-xbrl.zip | 11259 | 2021-05-25 08:59:12 |
| FilingSummary.xml | 1673 | 2021-05-25 08:59:12 |
| Financial_Report.xlsx | 5684 | 2021-05-25 08:59:12 |
| gntx-20210520.htm | 51146 | 2021-05-25 08:59:12 |
| gntx-20210520.xsd | 1980 | 2021-05-25 08:59:12 |
| gntx-20210520_htm.xml | 10759 | 2021-05-25 08:59:12 |
| gntx-20210520_lab.xml | 24270 | 2021-05-25 08:59:12 |
| gntx-20210520_pre.xml | 12711 | 2021-05-25 08:59:12 |
| MetaLinks.json | 17614 | 2021-05-25 08:59:12 |
| R1.htm | 38630 | 2021-05-25 08:59:12 |
| report.css | 2766 | 2021-05-25 08:59:12 |
| Show.js | 1084 | 2021-05-25 08:59:12 |