Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000714395-25-000012-index-headers.html | 2025-03-03 15:27:11 | |
| 0000714395-25-000012-index.html | 2025-03-03 15:27:11 | |
| 0000714395-25-000012.txt | 2025-03-03 15:27:11 | |
 0000714395-25-000012-xbrl.zip | 1579565 | 2025-03-03 15:27:11 |
| exhibit1013gabc123124.htm | 49666 | 2025-03-03 15:27:11 |
| exhibit1015gabc123124.htm | 25520 | 2025-03-03 15:27:11 |
| exhibit19gabc123124.htm | 44500 | 2025-03-03 15:27:11 |
| exhibit21gabc123124.htm | 14485 | 2025-03-03 15:27:11 |
| exhibit23gabc123124.htm | 4337 | 2025-03-03 15:27:11 |
| exhibit311gabc123124.htm | 11725 | 2025-03-03 15:27:11 |
| exhibit312gabc123124.htm | 12087 | 2025-03-03 15:27:11 |
| exhibit321gabc123124.htm | 5919 | 2025-03-03 15:27:11 |
| exhibit322gabc123124.htm | 5843 | 2025-03-03 15:27:11 |
| FilingSummary.xml | 79382 | 2025-03-03 15:27:11 |
| Financial_Report.xlsx | 247920 | 2025-03-03 15:27:11 |
| gabc-20241231.htm | 4790838 | 2025-03-03 15:27:11 |
| gabc-20241231.xsd | 112530 | 2025-03-03 15:27:11 |
| gabc-20241231_cal.xml | 203083 | 2025-03-03 15:27:11 |
| gabc-20241231_def.xml | 681224 | 2025-03-03 15:27:11 |
 gabc-20241231_g1.jpg | 68981 | 2025-03-03 15:27:11 |
 gabc-20241231_g2.jpg | 907143 | 2025-03-03 15:27:11 |
 gabc-20241231_g3.jpg | 151179 | 2025-03-03 15:27:11 |
 gabc-20241231_g4.gif | 7425 | 2025-03-03 15:27:11 |
| gabc-20241231_htm.xml | 5895111 | 2025-03-03 15:27:11 |
| gabc-20241231_lab.xml | 1379852 | 2025-03-03 15:27:11 |
| gabc-20241231_pre.xml | 1083918 | 2025-03-03 15:27:11 |
| MetaLinks.json | 1729092 | 2025-03-03 15:27:11 |
| R1.htm | 66489 | 2025-03-03 15:27:11 |
| R10.htm | 49929 | 2025-03-03 15:27:11 |
| R100.htm | 40871 | 2025-03-03 15:27:11 |
| R101.htm | 42534 | 2025-03-03 15:27:11 |
| R102.htm | 13611 | 2025-03-03 15:27:11 |
| R103.htm | 13115 | 2025-03-03 15:27:11 |
| R104.htm | 20098 | 2025-03-03 15:27:11 |
| R105.htm | 9126 | 2025-03-03 15:27:11 |
| R106.htm | 41054 | 2025-03-03 15:27:11 |
| R107.htm | 22842 | 2025-03-03 15:27:11 |
| R108.htm | 9027 | 2025-03-03 15:27:11 |
| R109.htm | 32778 | 2025-03-03 15:27:11 |
| R11.htm | 11812 | 2025-03-03 15:27:11 |
| R110.htm | 47341 | 2025-03-03 15:27:11 |
| R111.htm | 9742 | 2025-03-03 15:27:11 |
| R112.htm | 19632 | 2025-03-03 15:27:11 |
| R113.htm | 44451 | 2025-03-03 15:27:11 |
| R114.htm | 49461 | 2025-03-03 15:27:11 |
| R115.htm | 50128 | 2025-03-03 15:27:11 |
| R116.htm | 6788 | 2025-03-03 15:27:11 |
| R117.htm | 94686 | 2025-03-03 15:27:11 |
| R118.htm | 76708 | 2025-03-03 15:27:11 |
| R119.htm | 74331 | 2025-03-03 15:27:11 |
| R12.htm | 113963 | 2025-03-03 15:27:11 |
| R120.htm | 59421 | 2025-03-03 15:27:11 |
| R121.htm | 83155 | 2025-03-03 15:27:11 |
| R122.htm | 55134 | 2025-03-03 15:27:11 |
| R123.htm | 21498 | 2025-03-03 15:27:11 |
| R124.htm | 13887 | 2025-03-03 15:27:11 |
| R125.htm | 17549 | 2025-03-03 15:27:11 |
| R126.htm | 15773 | 2025-03-03 15:27:11 |
| R127.htm | 27663 | 2025-03-03 15:27:11 |
| R128.htm | 37954 | 2025-03-03 15:27:11 |
| R129.htm | 32445 | 2025-03-03 15:27:11 |
| R13.htm | 24525 | 2025-03-03 15:27:11 |
| R130.htm | 11613 | 2025-03-03 15:27:11 |
| R14.htm | 824941 | 2025-03-03 15:27:11 |
| R15.htm | 16389 | 2025-03-03 15:27:11 |
| R16.htm | 12824 | 2025-03-03 15:27:11 |
| R17.htm | 95252 | 2025-03-03 15:27:11 |
| R18.htm | 129704 | 2025-03-03 15:27:11 |
| R19.htm | 58488 | 2025-03-03 15:27:11 |
| R2.htm | 7789 | 2025-03-03 15:27:11 |
| R20.htm | 78938 | 2025-03-03 15:27:11 |
| R21.htm | 35816 | 2025-03-03 15:27:11 |
| R22.htm | 28563 | 2025-03-03 15:27:11 |
| R23.htm | 107865 | 2025-03-03 15:27:11 |
| R24.htm | 35451 | 2025-03-03 15:27:11 |
| R25.htm | 239397 | 2025-03-03 15:27:11 |
| R26.htm | 163648 | 2025-03-03 15:27:11 |
| R27.htm | 111469 | 2025-03-03 15:27:11 |
| R28.htm | 75657 | 2025-03-03 15:27:11 |
| R29.htm | 68611 | 2025-03-03 15:27:11 |
| R3.htm | 111330 | 2025-03-03 15:27:11 |
| R30.htm | 11208 | 2025-03-03 15:27:11 |
| R31.htm | 14634 | 2025-03-03 15:27:11 |
| R32.htm | 8481 | 2025-03-03 15:27:11 |
| R33.htm | 4387 | 2025-03-03 15:27:11 |
| R34.htm | 52983 | 2025-03-03 15:27:11 |
| R35.htm | 134163 | 2025-03-03 15:27:11 |
| R36.htm | 9617 | 2025-03-03 15:27:11 |
| R37.htm | 114601 | 2025-03-03 15:27:11 |
| R38.htm | 25153 | 2025-03-03 15:27:11 |
| R39.htm | 829363 | 2025-03-03 15:27:11 |
| R4.htm | 10891 | 2025-03-03 15:27:11 |
| R40.htm | 15154 | 2025-03-03 15:27:11 |
| R41.htm | 10187 | 2025-03-03 15:27:11 |
| R42.htm | 85554 | 2025-03-03 15:27:11 |
| R43.htm | 113193 | 2025-03-03 15:27:11 |
| R44.htm | 56555 | 2025-03-03 15:27:11 |
| R45.htm | 77403 | 2025-03-03 15:27:11 |
| R46.htm | 29047 | 2025-03-03 15:27:11 |
| R47.htm | 27580 | 2025-03-03 15:27:11 |
| R48.htm | 74519 | 2025-03-03 15:27:11 |
| R49.htm | 31334 | 2025-03-03 15:27:11 |
| R5.htm | 114708 | 2025-03-03 15:27:11 |
| R50.htm | 236091 | 2025-03-03 15:27:11 |
| R51.htm | 154524 | 2025-03-03 15:27:11 |
| R52.htm | 115034 | 2025-03-03 15:27:11 |
| R53.htm | 84139 | 2025-03-03 15:27:11 |
| R54.htm | 69822 | 2025-03-03 15:27:11 |
| R55.htm | 26794 | 2025-03-03 15:27:11 |
| R56.htm | 25722 | 2025-03-03 15:27:11 |
| R57.htm | 13355 | 2025-03-03 15:27:11 |
| R58.htm | 14992 | 2025-03-03 15:27:11 |
| R59.htm | 27237 | 2025-03-03 15:27:11 |
| R6.htm | 48908 | 2025-03-03 15:27:11 |
| R60.htm | 39747 | 2025-03-03 15:27:11 |
| R61.htm | 35068 | 2025-03-03 15:27:11 |
| R62.htm | 11171 | 2025-03-03 15:27:11 |
| R63.htm | 33853 | 2025-03-03 15:27:11 |
| R64.htm | 6351 | 2025-03-03 15:27:11 |
| R65.htm | 18801 | 2025-03-03 15:27:11 |
| R66.htm | 6269 | 2025-03-03 15:27:11 |
| R67.htm | 50406 | 2025-03-03 15:27:11 |
| R68.htm | 12926 | 2025-03-03 15:27:11 |
| R69.htm | 49461 | 2025-03-03 15:27:11 |
| R7.htm | 52190 | 2025-03-03 15:27:11 |
| R70.htm | 32633 | 2025-03-03 15:27:11 |
| R71.htm | 78936 | 2025-03-03 15:27:11 |
| R72.htm | 80025 | 2025-03-03 15:27:11 |
| R73.htm | 142805 | 2025-03-03 15:27:11 |
| R74.htm | 91371 | 2025-03-03 15:27:11 |
| R75.htm | 12256 | 2025-03-03 15:27:11 |
| R76.htm | 27276 | 2025-03-03 15:27:11 |
| R77.htm | 13049 | 2025-03-03 15:27:11 |
| R78.htm | 20035 | 2025-03-03 15:27:11 |
| R79.htm | 16808 | 2025-03-03 15:27:11 |
| R8.htm | 4587 | 2025-03-03 15:27:11 |
| R80.htm | 8161 | 2025-03-03 15:27:11 |
| R81.htm | 53508 | 2025-03-03 15:27:11 |
| R82.htm | 10812 | 2025-03-03 15:27:11 |
| R83.htm | 44042 | 2025-03-03 15:27:11 |
| R84.htm | 22412 | 2025-03-03 15:27:11 |
| R85.htm | 50166 | 2025-03-03 15:27:11 |
| R86.htm | 81035 | 2025-03-03 15:27:11 |
| R87.htm | 68698 | 2025-03-03 15:27:11 |
| R88.htm | 10502 | 2025-03-03 15:27:11 |
| R89.htm | 24955 | 2025-03-03 15:27:11 |
| R9.htm | 122688 | 2025-03-03 15:27:11 |
| R90.htm | 32856 | 2025-03-03 15:27:11 |
| R91.htm | 20699 | 2025-03-03 15:27:11 |
| R92.htm | 23693 | 2025-03-03 15:27:11 |
| R93.htm | 6518 | 2025-03-03 15:27:11 |
| R94.htm | 8885 | 2025-03-03 15:27:11 |
| R95.htm | 15338 | 2025-03-03 15:27:11 |
| R96.htm | 18267 | 2025-03-03 15:27:11 |
| R97.htm | 31223 | 2025-03-03 15:27:11 |
| R98.htm | 52280 | 2025-03-03 15:27:11 |
| R99.htm | 20083 | 2025-03-03 15:27:11 |
| report.css | 2768 | 2025-03-03 15:27:11 |
| Show.js | 1086 | 2025-03-03 15:27:11 |