Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-19-020109-index-headers.html | 2019-11-08 11:56:52 | |
| 0001140361-19-020109-index.html | 2019-11-08 11:56:52 | |
| 0001140361-19-020109.txt | 2019-11-08 11:56:52 | |
 0001140361-19-020109-xbrl.zip | 307028 | 2019-11-08 11:56:52 |
| ex31_1.htm | 8854 | 2019-11-08 11:56:52 |
| ex31_2.htm | 9065 | 2019-11-08 11:56:52 |
| ex32_1.htm | 4834 | 2019-11-08 11:56:52 |
| ex32_2.htm | 5021 | 2019-11-08 11:56:52 |
| FilingSummary.xml | 39849 | 2019-11-08 11:56:52 |
| Financial_Report.xlsx | 102568 | 2019-11-08 11:56:52 |
| form10q.htm | 2100294 | 2019-11-08 11:56:52 |
| gcbc-20190930.xml | 3611006 | 2019-11-08 11:56:52 |
| gcbc-20190930.xsd | 56825 | 2019-11-08 11:56:52 |
| gcbc-20190930_cal.xml | 131697 | 2019-11-08 11:56:52 |
| gcbc-20190930_def.xml | 320876 | 2019-11-08 11:56:52 |
| gcbc-20190930_lab.xml | 897313 | 2019-11-08 11:56:52 |
| gcbc-20190930_pre.xml | 529400 | 2019-11-08 11:56:52 |
 image0.jpg | 105353 | 2019-11-08 11:56:52 |
| R1.htm | 32656 | 2019-11-08 11:56:52 |
| R10.htm | 6625 | 2019-11-08 11:56:52 |
| R11.htm | 6734 | 2019-11-08 11:56:52 |
| R12.htm | 685181 | 2019-11-08 11:56:52 |
| R13.htm | 440232 | 2019-11-08 11:56:52 |
| R14.htm | 187031 | 2019-11-08 11:56:52 |
| R15.htm | 15169 | 2019-11-08 11:56:52 |
| R16.htm | 5571 | 2019-11-08 11:56:52 |
| R17.htm | 23415 | 2019-11-08 11:56:52 |
| R18.htm | 13786 | 2019-11-08 11:56:52 |
| R19.htm | 17762 | 2019-11-08 11:56:52 |
| R2.htm | 76056 | 2019-11-08 11:56:52 |
| R20.htm | 27919 | 2019-11-08 11:56:52 |
| R21.htm | 26542 | 2019-11-08 11:56:52 |
| R22.htm | 20693 | 2019-11-08 11:56:52 |
| R23.htm | 5473 | 2019-11-08 11:56:52 |
| R24.htm | 10064 | 2019-11-08 11:56:52 |
| R25.htm | 8192 | 2019-11-08 11:56:52 |
| R26.htm | 6175 | 2019-11-08 11:56:52 |
| R27.htm | 22619 | 2019-11-08 11:56:52 |
| R28.htm | 243817 | 2019-11-08 11:56:52 |
| R29.htm | 433562 | 2019-11-08 11:56:52 |
| R3.htm | 20590 | 2019-11-08 11:56:52 |
| R30.htm | 184165 | 2019-11-08 11:56:52 |
| R31.htm | 14482 | 2019-11-08 11:56:52 |
| R32.htm | 12028 | 2019-11-08 11:56:52 |
| R33.htm | 16266 | 2019-11-08 11:56:52 |
| R34.htm | 27398 | 2019-11-08 11:56:52 |
| R35.htm | 22184 | 2019-11-08 11:56:52 |
| R36.htm | 21820 | 2019-11-08 11:56:52 |
| R37.htm | 5347 | 2019-11-08 11:56:52 |
| R38.htm | 59328 | 2019-11-08 11:56:52 |
| R39.htm | 107439 | 2019-11-08 11:56:52 |
| R4.htm | 79437 | 2019-11-08 11:56:52 |
| R40.htm | 86170 | 2019-11-08 11:56:52 |
| R41.htm | 6098 | 2019-11-08 11:56:52 |
| R42.htm | 38926 | 2019-11-08 11:56:52 |
| R43.htm | 81150 | 2019-11-08 11:56:52 |
| R44.htm | 86443 | 2019-11-08 11:56:52 |
| R45.htm | 6664 | 2019-11-08 11:56:52 |
| R46.htm | 76325 | 2019-11-08 11:56:52 |
| R47.htm | 7024 | 2019-11-08 11:56:52 |
| R48.htm | 91665 | 2019-11-08 11:56:52 |
| R49.htm | 6697 | 2019-11-08 11:56:52 |
| R5.htm | 16101 | 2019-11-08 11:56:52 |
| R50.htm | 46921 | 2019-11-08 11:56:52 |
| R51.htm | 28319 | 2019-11-08 11:56:52 |
| R52.htm | 40672 | 2019-11-08 11:56:52 |
| R53.htm | 50706 | 2019-11-08 11:56:52 |
| R54.htm | 24033 | 2019-11-08 11:56:52 |
| R55.htm | 19118 | 2019-11-08 11:56:52 |
| R56.htm | 8904 | 2019-11-08 11:56:52 |
| R57.htm | 19930 | 2019-11-08 11:56:52 |
| R58.htm | 20704 | 2019-11-08 11:56:52 |
| R59.htm | 32626 | 2019-11-08 11:56:52 |
| R6.htm | 5071 | 2019-11-08 11:56:52 |
| R60.htm | 22092 | 2019-11-08 11:56:52 |
| R61.htm | 19560 | 2019-11-08 11:56:52 |
| R62.htm | 19827 | 2019-11-08 11:56:52 |
| R63.htm | 17320 | 2019-11-08 11:56:52 |
| R7.htm | 25465 | 2019-11-08 11:56:52 |
| R8.htm | 92672 | 2019-11-08 11:56:52 |
| R9.htm | 10808 | 2019-11-08 11:56:52 |
| report.css | 2767 | 2019-11-08 11:56:52 |
| Show.js | 1085 | 2019-11-08 11:56:52 |