Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000931148-24-000103-index.html | 2024-08-07 16:43:16 | |
| 0000931148-24-000103.txt | 2024-08-07 16:43:16 | |
 0000931148-24-000103-xbrl.zip | 88741 | 2024-08-07 16:43:16 |
| exhibit991pressrelease-n.htm | 7826 | 2024-08-07 16:43:16 |
 exhibit991pressrelease-n001.jpg | 222361 | 2024-08-07 16:43:16 |
 exhibit991pressrelease-n002.jpg | 249175 | 2024-08-07 16:43:16 |
| FilingSummary.xml | 1678 | 2024-08-07 16:43:16 |
| Financial_Report.xlsx | 5702 | 2024-08-07 16:43:16 |
| gti-20240806.htm | 34449 | 2024-08-07 16:43:16 |
| gti-20240806.xsd | 1901 | 2024-08-07 16:43:16 |
 gti-20240806_g1.jpg | 84955 | 2024-08-07 16:43:16 |
| gti-20240806_htm.xml | 2720 | 2024-08-07 16:43:16 |
| gti-20240806_lab.xml | 21903 | 2024-08-07 16:43:16 |
| gti-20240806_pre.xml | 12509 | 2024-08-07 16:43:16 |
| MetaLinks.json | 17085 | 2024-08-07 16:43:16 |
| R1.htm | 38112 | 2024-08-07 16:43:16 |
| report.css | 2767 | 2024-08-07 16:43:16 |
| Show.js | 1085 | 2024-08-07 16:43:16 |