Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-17-036703-index-headers.html | 2017-09-28 11:56:30 | |
| 0001140361-17-036703-index.html | 2017-09-28 11:56:30 | |
| 0001140361-17-036703.txt | 2017-09-28 11:56:30 | |
 0001140361-17-036703-xbrl.zip | 349204 | 2017-09-28 11:56:30 |
| ex21_0.htm | 4550 | 2017-09-28 11:56:30 |
| ex23_1.htm | 2034 | 2017-09-28 11:56:30 |
| ex31_1.htm | 10096 | 2017-09-28 11:56:30 |
| ex31_2.htm | 10634 | 2017-09-28 11:56:30 |
| ex32_1.htm | 5962 | 2017-09-28 11:56:30 |
| ex32_2.htm | 6415 | 2017-09-28 11:56:30 |
| FilingSummary.xml | 58255 | 2017-09-28 11:56:30 |
| Financial_Report.xlsx | 144514 | 2017-09-28 11:56:30 |
| form10k.htm | 3230898 | 2017-09-28 11:56:30 |
| gcbc-20170630.xml | 4164812 | 2017-09-28 11:56:30 |
| gcbc-20170630.xsd | 86351 | 2017-09-28 11:56:30 |
| gcbc-20170630_cal.xml | 175404 | 2017-09-28 11:56:30 |
| gcbc-20170630_def.xml | 485585 | 2017-09-28 11:56:30 |
| gcbc-20170630_lab.xml | 1432031 | 2017-09-28 11:56:30 |
| gcbc-20170630_pre.xml | 831729 | 2017-09-28 11:56:30 |
 image00001.jpg | 4215 | 2017-09-28 11:56:30 |
| R1.htm | 28237 | 2017-09-28 11:56:30 |
| R10.htm | 54100 | 2017-09-28 11:56:30 |
| R11.htm | 6505 | 2017-09-28 11:56:30 |
| R12.htm | 273532 | 2017-09-28 11:56:30 |
| R13.htm | 463759 | 2017-09-28 11:56:30 |
| R14.htm | 14711 | 2017-09-28 11:56:30 |
| R15.htm | 36547 | 2017-09-28 11:56:30 |
| R16.htm | 13948 | 2017-09-28 11:56:30 |
| R17.htm | 14871 | 2017-09-28 11:56:30 |
| R18.htm | 81664 | 2017-09-28 11:56:30 |
| R19.htm | 45625 | 2017-09-28 11:56:30 |
| R2.htm | 75681 | 2017-09-28 11:56:30 |
| R20.htm | 17939 | 2017-09-28 11:56:30 |
| R21.htm | 50407 | 2017-09-28 11:56:30 |
| R22.htm | 13385 | 2017-09-28 11:56:30 |
| R23.htm | 12282 | 2017-09-28 11:56:30 |
| R24.htm | 6922 | 2017-09-28 11:56:30 |
| R25.htm | 191228 | 2017-09-28 11:56:30 |
| R26.htm | 144681 | 2017-09-28 11:56:30 |
| R27.htm | 92353 | 2017-09-28 11:56:30 |
| R28.htm | 5205 | 2017-09-28 11:56:30 |
| R29.htm | 105528 | 2017-09-28 11:56:30 |
| R3.htm | 21186 | 2017-09-28 11:56:30 |
| R30.htm | 270794 | 2017-09-28 11:56:30 |
| R31.htm | 455154 | 2017-09-28 11:56:30 |
| R32.htm | 13814 | 2017-09-28 11:56:30 |
| R33.htm | 37705 | 2017-09-28 11:56:30 |
| R34.htm | 10964 | 2017-09-28 11:56:30 |
| R35.htm | 12332 | 2017-09-28 11:56:30 |
| R36.htm | 86041 | 2017-09-28 11:56:30 |
| R37.htm | 44435 | 2017-09-28 11:56:30 |
| R38.htm | 16184 | 2017-09-28 11:56:30 |
| R39.htm | 50709 | 2017-09-28 11:56:30 |
| R4.htm | 87637 | 2017-09-28 11:56:30 |
| R40.htm | 10359 | 2017-09-28 11:56:30 |
| R41.htm | 10457 | 2017-09-28 11:56:30 |
| R42.htm | 189757 | 2017-09-28 11:56:30 |
| R43.htm | 138285 | 2017-09-28 11:56:30 |
| R44.htm | 95017 | 2017-09-28 11:56:30 |
| R45.htm | 34652 | 2017-09-28 11:56:30 |
| R46.htm | 4980 | 2017-09-28 11:56:30 |
| R47.htm | 94010 | 2017-09-28 11:56:30 |
| R48.htm | 120681 | 2017-09-28 11:56:30 |
| R49.htm | 94318 | 2017-09-28 11:56:30 |
| R5.htm | 23647 | 2017-09-28 11:56:30 |
| R50.htm | 37809 | 2017-09-28 11:56:30 |
| R51.htm | 78389 | 2017-09-28 11:56:30 |
| R52.htm | 85992 | 2017-09-28 11:56:30 |
| R53.htm | 6611 | 2017-09-28 11:56:30 |
| R54.htm | 70685 | 2017-09-28 11:56:30 |
| R55.htm | 4971 | 2017-09-28 11:56:30 |
| R56.htm | 76503 | 2017-09-28 11:56:30 |
| R57.htm | 11553 | 2017-09-28 11:56:30 |
| R58.htm | 16512 | 2017-09-28 11:56:30 |
| R59.htm | 16605 | 2017-09-28 11:56:30 |
| R6.htm | 12398 | 2017-09-28 11:56:30 |
| R60.htm | 37876 | 2017-09-28 11:56:30 |
| R61.htm | 14942 | 2017-09-28 11:56:30 |
| R62.htm | 39637 | 2017-09-28 11:56:30 |
| R63.htm | 16845 | 2017-09-28 11:56:30 |
| R64.htm | 14257 | 2017-09-28 11:56:30 |
| R65.htm | 15294 | 2017-09-28 11:56:30 |
| R66.htm | 17157 | 2017-09-28 11:56:30 |
| R67.htm | 16818 | 2017-09-28 11:56:30 |
| R68.htm | 11380 | 2017-09-28 11:56:30 |
| R69.htm | 11181 | 2017-09-28 11:56:30 |
| R7.htm | 31851 | 2017-09-28 11:56:30 |
| R70.htm | 14355 | 2017-09-28 11:56:30 |
| R71.htm | 25719 | 2017-09-28 11:56:30 |
| R72.htm | 15130 | 2017-09-28 11:56:30 |
| R73.htm | 13700 | 2017-09-28 11:56:30 |
| R74.htm | 10667 | 2017-09-28 11:56:30 |
| R75.htm | 21337 | 2017-09-28 11:56:30 |
| R76.htm | 51876 | 2017-09-28 11:56:30 |
| R77.htm | 20113 | 2017-09-28 11:56:30 |
| R78.htm | 33798 | 2017-09-28 11:56:30 |
| R79.htm | 22530 | 2017-09-28 11:56:30 |
| R8.htm | 3292 | 2017-09-28 11:56:30 |
| R80.htm | 16454 | 2017-09-28 11:56:30 |
| R81.htm | 17819 | 2017-09-28 11:56:30 |
| R82.htm | 45761 | 2017-09-28 11:56:30 |
| R83.htm | 9590 | 2017-09-28 11:56:30 |
| R84.htm | 22596 | 2017-09-28 11:56:30 |
| R85.htm | 50977 | 2017-09-28 11:56:30 |
| R86.htm | 24091 | 2017-09-28 11:56:30 |
| R87.htm | 31998 | 2017-09-28 11:56:30 |
| R88.htm | 47891 | 2017-09-28 11:56:30 |
| R89.htm | 86340 | 2017-09-28 11:56:30 |
| R9.htm | 102038 | 2017-09-28 11:56:30 |
| R90.htm | 26643 | 2017-09-28 11:56:30 |
| R91.htm | 24392 | 2017-09-28 11:56:30 |
| R92.htm | 40632 | 2017-09-28 11:56:30 |
| R93.htm | 47816 | 2017-09-28 11:56:30 |
| R94.htm | 19768 | 2017-09-28 11:56:30 |
| report.css | 2768 | 2017-09-28 11:56:30 |
| Show.js | 1411 | 2017-09-28 11:56:30 |