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|---|---|---|
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| 0000931148-23-000097-index.html | 2023-06-13 16:41:10 | |
| 0000931148-23-000097.txt | 2023-06-13 16:41:10 | |
 0000931148-23-000097-xbrl.zip | 108656 | 2023-06-13 16:41:10 |
| exhibit101employmentagreem.htm | 144770 | 2023-06-13 16:41:10 |
| exhibit991diegodonoso-boar.htm | 5053 | 2023-06-13 16:41:10 |
| FilingSummary.xml | 1754 | 2023-06-13 16:41:10 |
| Financial_Report.xlsx | 5699 | 2023-06-13 16:41:10 |
| gti-20230613.htm | 41655 | 2023-06-13 16:41:10 |
| gti-20230613.xsd | 1901 | 2023-06-13 16:41:10 |
 gti-20230613_g1.jpg | 84955 | 2023-06-13 16:41:10 |
| gti-20230613_htm.xml | 10839 | 2023-06-13 16:41:10 |
| gti-20230613_lab.xml | 24157 | 2023-06-13 16:41:10 |
| gti-20230613_pre.xml | 12509 | 2023-06-13 16:41:10 |
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| MetaLinks.json | 17184 | 2023-06-13 16:41:10 |
| R1.htm | 38109 | 2023-06-13 16:41:10 |
| report.css | 2767 | 2023-06-13 16:41:10 |
| Show.js | 1085 | 2023-06-13 16:41:10 |