Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000931148-23-000135-index.html | 2023-07-27 16:20:05 | |
| 0000931148-23-000135.txt | 2023-07-27 16:20:05 | |
 0000931148-23-000135-xbrl.zip | 86216 | 2023-07-27 16:20:05 |
| exhibit101benefitsaddend.htm | 6287 | 2023-07-27 16:20:05 |
 exhibit101benefitsaddend001.jpg | 118298 | 2023-07-27 16:20:05 |
 exhibit101benefitsaddend002.jpg | 214229 | 2023-07-27 16:20:05 |
 exhibit101benefitsaddend003.jpg | 38131 | 2023-07-27 16:20:05 |
| FilingSummary.xml | 1704 | 2023-07-27 16:20:05 |
| Financial_Report.xlsx | 5699 | 2023-07-27 16:20:05 |
| gti-20230727.htm | 27677 | 2023-07-27 16:20:05 |
| gti-20230727.xsd | 1901 | 2023-07-27 16:20:05 |
 gti-20230727_g1.jpg | 84955 | 2023-07-27 16:20:05 |
| gti-20230727_htm.xml | 2720 | 2023-07-27 16:20:05 |
| gti-20230727_lab.xml | 24157 | 2023-07-27 16:20:05 |
| gti-20230727_pre.xml | 12509 | 2023-07-27 16:20:05 |
| MetaLinks.json | 17086 | 2023-07-27 16:20:05 |
| R1.htm | 38109 | 2023-07-27 16:20:05 |
| report.css | 2767 | 2023-07-27 16:20:05 |
| Show.js | 1085 | 2023-07-27 16:20:05 |