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| 0001437749-23-004472.txt | 2023-02-24 09:19:33 | |
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| ex_479445.htm | 905592 | 2023-02-24 09:19:33 |
| FilingSummary.xml | 1764 | 2023-02-24 09:19:33 |
| Financial_Report.xlsx | 5812 | 2023-02-24 09:19:33 |
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| gtn-20230224.xsd | 4003 | 2023-02-24 09:19:33 |
| gtn-20230224_def.xml | 13462 | 2023-02-24 09:19:33 |
| gtn-20230224_lab.xml | 17582 | 2023-02-24 09:19:33 |
| gtn-20230224_pre.xml | 13429 | 2023-02-24 09:19:33 |
| gtn20230222_8k.htm | 24477 | 2023-02-24 09:19:33 |
| gtn20230222_8k_htm.xml | 4193 | 2023-02-24 09:19:33 |
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| report.css | 2767 | 2023-02-24 09:19:33 |
| Show.js | 1085 | 2023-02-24 09:19:33 |