Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-016796-index-headers.html | 2020-08-06 11:27:38 | |
| 0001437749-20-016796-index.html | 2020-08-06 11:27:38 | |
| 0001437749-20-016796.txt | 2020-08-06 11:27:38 | |
 0001437749-20-016796-xbrl.zip | 159144 | 2020-08-06 11:27:38 |
| ex_194827.htm | 14413 | 2020-08-06 11:27:38 |
| ex_194828.htm | 12395 | 2020-08-06 11:27:38 |
| ex_194829.htm | 3567 | 2020-08-06 11:27:38 |
| ex_194830.htm | 3593 | 2020-08-06 11:27:38 |
| FilingSummary.xml | 34935 | 2020-08-06 11:27:38 |
| Financial_Report.xlsx | 71665 | 2020-08-06 11:27:38 |
| gtn-20200630.xsd | 56213 | 2020-08-06 11:27:38 |
| gtn-20200630_cal.xml | 51343 | 2020-08-06 11:27:38 |
| gtn-20200630_def.xml | 386940 | 2020-08-06 11:27:38 |
| gtn-20200630_lab.xml | 360211 | 2020-08-06 11:27:38 |
| gtn-20200630_pre.xml | 421488 | 2020-08-06 11:27:38 |
| gtn20200630_10q.htm | 1723125 | 2020-08-06 11:27:38 |
| gtn20200630_10q_htm.xml | 1544723 | 2020-08-06 11:27:38 |
| MetaLinks.json | 605778 | 2020-08-06 11:27:38 |
| R1.htm | 57073 | 2020-08-06 11:27:38 |
| R10.htm | 10618 | 2020-08-06 11:27:38 |
| R11.htm | 11118 | 2020-08-06 11:27:38 |
| R12.htm | 10611 | 2020-08-06 11:27:38 |
| R13.htm | 88830 | 2020-08-06 11:27:38 |
| R14.htm | 33323 | 2020-08-06 11:27:38 |
| R15.htm | 6453 | 2020-08-06 11:27:38 |
| R16.htm | 71588 | 2020-08-06 11:27:38 |
| R17.htm | 20729 | 2020-08-06 11:27:38 |
| R18.htm | 69274 | 2020-08-06 11:27:38 |
| R19.htm | 112204 | 2020-08-06 11:27:38 |
| R2.htm | 112968 | 2020-08-06 11:27:38 |
| R20.htm | 87364 | 2020-08-06 11:27:38 |
| R21.htm | 44723 | 2020-08-06 11:27:38 |
| R22.htm | 60091 | 2020-08-06 11:27:38 |
| R23.htm | 71961 | 2020-08-06 11:27:38 |
| R24.htm | 30530 | 2020-08-06 11:27:38 |
| R25.htm | 70115 | 2020-08-06 11:27:38 |
| R26.htm | 14263 | 2020-08-06 11:27:38 |
| R27.htm | 64627 | 2020-08-06 11:27:38 |
| R28.htm | 3432 | 2020-08-06 11:27:38 |
| R29.htm | 9289 | 2020-08-06 11:27:38 |
| R3.htm | 31336 | 2020-08-06 11:27:38 |
| R30.htm | 9326 | 2020-08-06 11:27:38 |
| R31.htm | 21144 | 2020-08-06 11:27:38 |
| R32.htm | 17261 | 2020-08-06 11:27:38 |
| R33.htm | 10039 | 2020-08-06 11:27:38 |
| R34.htm | 6390 | 2020-08-06 11:27:38 |
| R35.htm | 22693 | 2020-08-06 11:27:38 |
| R36.htm | 20315 | 2020-08-06 11:27:38 |
| R37.htm | 28214 | 2020-08-06 11:27:38 |
| R38.htm | 33527 | 2020-08-06 11:27:38 |
| R39.htm | 5830 | 2020-08-06 11:27:38 |
| R4.htm | 87340 | 2020-08-06 11:27:38 |
| R40.htm | 40674 | 2020-08-06 11:27:38 |
| R41.htm | 13390 | 2020-08-06 11:27:38 |
| R42.htm | 62514 | 2020-08-06 11:27:38 |
| R43.htm | 7824 | 2020-08-06 11:27:38 |
| R44.htm | 34776 | 2020-08-06 11:27:38 |
| R45.htm | 10107 | 2020-08-06 11:27:38 |
| R46.htm | 7968 | 2020-08-06 11:27:38 |
| R47.htm | 18835 | 2020-08-06 11:27:38 |
| R48.htm | 17895 | 2020-08-06 11:27:38 |
| R49.htm | 25031 | 2020-08-06 11:27:38 |
| R5.htm | 91064 | 2020-08-06 11:27:38 |
| R50.htm | 41155 | 2020-08-06 11:27:38 |
| R51.htm | 16403 | 2020-08-06 11:27:38 |
| R52.htm | 7294 | 2020-08-06 11:27:38 |
| R53.htm | 3431 | 2020-08-06 11:27:38 |
| R54.htm | 49046 | 2020-08-06 11:27:38 |
| R6.htm | 94312 | 2020-08-06 11:27:38 |
| R7.htm | 104306 | 2020-08-06 11:27:38 |
| R8.htm | 51568 | 2020-08-06 11:27:38 |
| R9.htm | 60889 | 2020-08-06 11:27:38 |
| report.css | 2767 | 2020-08-06 11:27:38 |
| Show.js | 1085 | 2020-08-06 11:27:38 |