Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000355811-20-000030-index-headers.html | 2020-05-26 15:07:05 | |
| 0000355811-20-000030-index.html | 2020-05-26 15:07:05 | |
| 0000355811-20-000030.txt | 2020-05-26 15:07:05 | |
 0000355811-20-000030-xbrl.zip | 13519 | 2020-05-26 15:07:05 |
| FilingSummary.xml | 1750 | 2020-05-26 15:07:05 |
| Financial_Report.xlsx | 5803 | 2020-05-26 15:07:05 |
| gntx-20200521.htm | 73599 | 2020-05-26 15:07:05 |
| gntx-20200521.xsd | 2630 | 2020-05-26 15:07:05 |
| gntx-20200521_cal.xml | 775 | 2020-05-26 15:07:05 |
| gntx-20200521_def.xml | 1731 | 2020-05-26 15:07:05 |
| gntx-20200521_htm.xml | 10740 | 2020-05-26 15:07:05 |
| gntx-20200521_lab.xml | 24270 | 2020-05-26 15:07:05 |
| gntx-20200521_pre.xml | 12711 | 2020-05-26 15:07:05 |
| MetaLinks.json | 18442 | 2020-05-26 15:07:05 |
| R1.htm | 38626 | 2020-05-26 15:07:05 |
| report.css | 2767 | 2020-05-26 15:07:05 |
| Show.js | 1085 | 2020-05-26 15:07:05 |