Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000931148-24-000105-index-headers.html | 2024-08-13 16:36:13 | |
| 0000931148-24-000105-index.html | 2024-08-13 16:36:13 | |
| 0000931148-24-000105.txt | 2024-08-13 16:36:13 | |
 0000931148-24-000105-xbrl.zip | 87581 | 2024-08-13 16:36:13 |
| exhibit991pressrelease-cfo.htm | 9083 | 2024-08-13 16:36:13 |
| FilingSummary.xml | 1678 | 2024-08-13 16:36:13 |
| Financial_Report.xlsx | 5700 | 2024-08-13 16:36:13 |
| gti-20240813.htm | 30026 | 2024-08-13 16:36:13 |
| gti-20240813.xsd | 1901 | 2024-08-13 16:36:13 |
 gti-20240813_g1.jpg | 84955 | 2024-08-13 16:36:13 |
| gti-20240813_htm.xml | 2720 | 2024-08-13 16:36:13 |
| gti-20240813_lab.xml | 21903 | 2024-08-13 16:36:13 |
| gti-20240813_pre.xml | 12509 | 2024-08-13 16:36:13 |
 image_0.jpg | 84955 | 2024-08-13 16:36:13 |
| MetaLinks.json | 17085 | 2024-08-13 16:36:13 |
| R1.htm | 38110 | 2024-08-13 16:36:13 |
| report.css | 2767 | 2024-08-13 16:36:13 |
| Show.js | 1085 | 2024-08-13 16:36:13 |