v3.25.3

Loans - Schedule of Credit Exposure of Loan Portfolio, Including Loans Acquired with Deteriorated Credit Quality, by Specific Credit Ratings (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | $ 119,090 |  | $ 257,903
Year two | 206,661 |  | 575,755
Year three | 509,766 |  | 719,913
Year four | 508,700 |  | 365,764
Year five | 284,563 |  | 202,354
Prior | 476,576 |  | 388,922
Revolving Loans | 180,817 |  | 191,469
Total Loans before Unearned Income | 2,286,173 |  | 2,702,080
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 209 |  | 623
Year two | 10,433 |  | 5,297
Year three | 701 |  | 3,428
Year four | 17,036 |  | 4,357
Year five | 589 |  | 2,787
Prior | 393 |  | 2,099
Revolving Loans | 0 |  | 0
Total | 29,361 | $ 13,674 | 18,591
Unearned income | (6,432) |  | (8,300)
Total loans net of unearned income | 2,279,741 |  | 2,693,780
Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 114,206 |  | 238,088
Year two | 152,631 |  | 536,475
Year three | 401,958 |  | 613,834
Year four | 421,358 |  | 311,848
Year five | 186,427 |  | 191,182
Prior | 375,467 |  | 336,938
Revolving Loans | 116,072 |  | 162,511
Total Loans before Unearned Income | 1,768,119 |  | 2,390,876
Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 660 |  | 8,169
Year two | 19,066 |  | 23,753
Year three | 17,863 |  | 29,443
Year four | 26,204 |  | 9,540
Year five | 55,788 |  | 5,383
Prior | 52,893 |  | 38,696
Revolving Loans | 39,704 |  | 10,674
Total Loans before Unearned Income | 212,178 |  | 125,658
Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 4,224 |  | 11,646
Year two | 34,964 |  | 15,527
Year three | 89,945 |  | 76,563
Year four | 61,062 |  | 44,292
Year five | 42,285 |  | 5,723
Prior | 48,057 |  | 13,150
Revolving Loans | 24,967 |  | 18,211
Total Loans before Unearned Income | 305,504 |  | 185,112
Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 73
Year four | 76 |  | 84
Year five | 63 |  | 66
Prior | 159 |  | 138
Revolving Loans | 74 |  | 73
Total Loans before Unearned Income | 372 |  | 434
Real Estate: |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 57,864 |  | 166,926
Year two | 145,474 |  | 469,763
Year three | 430,008 |  | 617,473
Year four | 456,001 |  | 279,953
Year five | 228,082 |  | 161,812
Prior | 446,834 |  | 359,247
Revolving Loans | 80,375 |  | 86,199
Total Loans before Unearned Income | 1,844,638 |  | 2,141,373
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Total | 26,259 | 6,283 |
Real Estate: | Construction & land development |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 9,615 |  | 19,020
Year two | 18,803 |  | 128,595
Year three | 114,727 |  | 144,217
Year four | 64,840 |  | 18,386
Year five | 6,277 |  | 2,055
Prior | 1,758 |  | 5,011
Revolving Loans | 15,136 |  | 12,764
Total Loans before Unearned Income | 231,156 |  | 330,048
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 39
Year four | 5,794 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total | 5,794 | 39 | 39
Real Estate: | Construction & land development | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 8,327 |  | 18,411
Year two | 17,053 |  | 110,178
Year three | 80,999 |  | 135,554
Year four | 53,065 |  | 17,703
Year five | 6,148 |  | 1,728
Prior | 1,631 |  | 4,422
Revolving Loans | 7,198 |  | 12,734
Total Loans before Unearned Income | 174,421 |  | 300,730
Real Estate: | Construction & land development | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 609
Year two | 1,750 |  | 16,956
Year three | 164 |  | 91
Year four | 11,045 |  | 0
Year five | 0 |  | 81
Prior | 127 |  | 64
Revolving Loans | 0 |  | 30
Total Loans before Unearned Income | 13,086 |  | 17,831
Real Estate: | Construction & land development | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 1,288 |  | 0
Year two | 0 |  | 1,461
Year three | 33,564 |  | 8,572
Year four | 730 |  | 599
Year five | 129 |  | 246
Prior | 0 |  | 525
Revolving Loans | 7,938 |  | 0
Total Loans before Unearned Income | 43,649 |  | 11,403
Real Estate: | Construction & land development | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 84
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 0 |  | 84
Real Estate: | Farmland |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 1,196 |  | 5,402
Year two | 5,918 |  | 12,357
Year three | 7,821 |  | 3,583
Year four | 3,651 |  | 3,312
Year five | 3,238 |  | 5,847
Prior | 7,444 |  | 2,625
Revolving Loans | 2,417 |  | 2,865
Total Loans before Unearned Income | 31,685 |  | 35,991
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 258
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total | 0 | 258 | 258
Real Estate: | Farmland | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 1,196 |  | 2,373
Year two | 2,900 |  | 11,976
Year three | 7,440 |  | 3,499
Year four | 3,583 |  | 3,312
Year five | 3,238 |  | 1,599
Prior | 1,950 |  | 1,922
Revolving Loans | 2,417 |  | 2,865
Total Loans before Unearned Income | 22,724 |  | 27,546
Real Estate: | Farmland | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 3,029
Year two | 154 |  | 0
Year three | 0 |  | 57
Year four | 46 |  | 0
Year five | 0 |  | 1,656
Prior | 2,739 |  | 76
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 2,939 |  | 4,818
Real Estate: | Farmland | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 2,864 |  | 381
Year three | 381 |  | 27
Year four | 22 |  | 0
Year five | 0 |  | 2,592
Prior | 2,755 |  | 627
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 6,022 |  | 3,627
Real Estate: | Farmland | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 0 |  | 0
Real Estate: | 1- 4 family |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 28,985 |  | 62,475
Year two | 58,125 |  | 103,928
Year three | 98,052 |  | 106,757
Year four | 101,092 |  | 68,328
Year five | 60,859 |  | 40,287
Prior | 85,169 |  | 54,045
Revolving Loans | 8,735 |  | 14,551
Total Loans before Unearned Income | 441,017 |  | 450,371
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 174
Year four | 21 |  | 59
Year five | 180 |  | 5
Prior | 289 |  | 796
Revolving Loans | 0 |  | 0
Total | 490 | 939 | 1,034
Real Estate: | 1- 4 family | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 26,719 |  | 62,044
Year two | 57,990 |  | 98,098
Year three | 90,410 |  | 101,780
Year four | 95,275 |  | 63,313
Year five | 53,832 |  | 36,285
Prior | 75,703 |  | 47,263
Revolving Loans | 7,921 |  | 9,896
Total Loans before Unearned Income | 407,850 |  | 418,679
Real Estate: | 1- 4 family | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 155 |  | 431
Year two | 114 |  | 1,644
Year three | 2,967 |  | 1,775
Year four | 1,485 |  | 326
Year five | 4,570 |  | 2,383
Prior | 3,618 |  | 2,320
Revolving Loans | 605 |  | 1,039
Total Loans before Unearned Income | 13,514 |  | 9,918
Real Estate: | 1- 4 family | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 2,111 |  | 0
Year two | 21 |  | 4,186
Year three | 4,675 |  | 3,129
Year four | 4,256 |  | 4,689
Year five | 2,394 |  | 1,619
Prior | 5,757 |  | 4,343
Revolving Loans | 135 |  | 3,543
Total Loans before Unearned Income | 19,349 |  | 21,509
Real Estate: | 1- 4 family | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 73
Year four | 76 |  | 0
Year five | 63 |  | 0
Prior | 91 |  | 119
Revolving Loans | 74 |  | 73
Total Loans before Unearned Income | 304 |  | 265
Real Estate: | Multifamily |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 3,000 |  | 446
Year two | 439 |  | 9,196
Year three | 8,497 |  | 79,536
Year four | 70,720 |  | 48,649
Year five | 46,517 |  | 14,607
Prior | 6,439 |  | 8,268
Revolving Loans | 1,970 |  | 4,419
Total Loans before Unearned Income | 137,582 |  | 165,121
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 10,430 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total | 10,430 | 0 | 0
Real Estate: | Multifamily | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 3,000 |  | 446
Year two | 439 |  | 9,196
Year three | 8,218 |  | 44,395
Year four | 41,765 |  | 48,143
Year five | 5,308 |  | 14,607
Prior | 6,439 |  | 5,135
Revolving Loans | 1,970 |  | 4,419
Total Loans before Unearned Income | 67,139 |  | 126,341
Real Estate: | Multifamily | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 254 |  | 7,100
Year four | 4,982 |  | 506
Year five | 41,209 |  | 0
Prior | 0 |  | 1,577
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 46,445 |  | 9,183
Real Estate: | Multifamily | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 25 |  | 28,041
Year four | 23,973 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 1,556
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 23,998 |  | 29,597
Real Estate: | Multifamily | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 0 |  | 0
Real Estate: | Non-farm non-residential |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 15,068 |  | 79,583
Year two | 62,189 |  | 215,687
Year three | 200,911 |  | 283,380
Year four | 215,698 |  | 141,278
Year five | 111,191 |  | 99,016
Prior | 346,024 |  | 289,298
Revolving Loans | 52,117 |  | 51,600
Total Loans before Unearned Income | 1,003,198 |  | 1,159,842
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 9,432 |  | 3,793
Year three | 0 |  | 1,031
Year four | 33 |  | 3,009
Year five | 80 |  | 331
Prior | 0 |  | 836
Revolving Loans | 0 |  | 0
Total | 9,545 | 5,047 | 9,000
Real Estate: | Non-farm non-residential | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 13,956 |  | 68,227
Year two | 34,308 |  | 202,084
Year three | 164,402 |  | 250,338
Year four | 189,522 |  | 95,588
Year five | 71,449 |  | 96,967
Prior | 263,058 |  | 251,914
Revolving Loans | 11,241 |  | 38,698
Total Loans before Unearned Income | 747,936 |  | 1,003,816
Real Estate: | Non-farm non-residential | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 358 |  | 0
Year two | 16,690 |  | 4,390
Year three | 12,156 |  | 354
Year four | 337 |  | 8,509
Year five | 9,303 |  | 1,067
Prior | 45,938 |  | 34,467
Revolving Loans | 36,373 |  | 9,208
Total Loans before Unearned Income | 121,155 |  | 57,995
Real Estate: | Non-farm non-residential | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 754 |  | 11,356
Year two | 11,191 |  | 9,213
Year three | 24,353 |  | 32,688
Year four | 25,839 |  | 37,181
Year five | 30,439 |  | 916
Prior | 36,963 |  | 2,917
Revolving Loans | 4,503 |  | 3,694
Total Loans before Unearned Income | 134,042 |  | 97,965
Real Estate: | Non-farm non-residential | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 66
Prior | 65 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 65 |  | 66
Non-Real Estate: |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 61,226 |  | 90,977
Year two | 61,187 |  | 105,992
Year three | 79,758 |  | 102,440
Year four | 52,699 |  | 85,811
Year five | 56,481 |  | 40,542
Prior | 29,742 |  | 29,675
Revolving Loans | 100,442 |  | 105,270
Total Loans before Unearned Income | 441,535 |  | 560,707
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Total | 3,102 | 7,391 |
Non-Real Estate: | Agricultural |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 1,776 |  | 2,289
Year two | 1,843 |  | 2,891
Year three | 1,842 |  | 9,608
Year four | 9,344 |  | 3,577
Year five | 2,962 |  | 1,402
Prior | 5,438 |  | 7,722
Revolving Loans | 21,532 |  | 13,233
Total Loans before Unearned Income | 44,737 |  | 40,722
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 169 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 33
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total | 169 | 33 | 33
Non-Real Estate: | Agricultural | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 1,706 |  | 2,102
Year two | 1,736 |  | 2,766
Year three | 1,720 |  | 7,815
Year four | 3,140 |  | 2,904
Year five | 2,807 |  | 1,142
Prior | 3,417 |  | 5,676
Revolving Loans | 20,946 |  | 13,130
Total Loans before Unearned Income | 35,472 |  | 35,535
Non-Real Estate: | Agricultural | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 70 |  | 18
Year two | 103 |  | 74
Year three | 74 |  | 1,793
Year four | 1,882 |  | 10
Year five | 0 |  | 132
Prior | 202 |  | 112
Revolving Loans | 341 |  | 91
Total Loans before Unearned Income | 2,672 |  | 2,230
Non-Real Estate: | Agricultural | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 169
Year two | 4 |  | 51
Year three | 48 |  | 0
Year four | 4,322 |  | 663
Year five | 155 |  | 128
Prior | 1,816 |  | 1,915
Revolving Loans | 245 |  | 12
Total Loans before Unearned Income | 6,590 |  | 2,938
Non-Real Estate: | Agricultural | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 3 |  | 19
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 3 |  | 19
Non-Real Estate: | Commercial and industrial |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 51,323 |  | 31,279
Year two | 19,835 |  | 27,129
Year three | 18,196 |  | 20,123
Year four | 12,041 |  | 40,631
Year five | 31,412 |  | 31,064
Prior | 15,360 |  | 15,255
Revolving Loans | 78,910 |  | 92,037
Total Loans before Unearned Income | 227,077 |  | 257,518
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 185
Year two | 122 |  | 702
Year three | 492 |  | 913
Year four | 260 |  | 563
Year five | 158 |  | 2,168
Prior | 23 |  | 342
Revolving Loans | 0 |  | 0
Total | 1,055 | 4,521 | 4,873
Non-Real Estate: | Commercial and industrial | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 51,175 |  | 27,172
Year two | 15,922 |  | 26,410
Year three | 15,908 |  | 19,230
Year four | 6,119 |  | 39,601
Year five | 29,952 |  | 30,833
Prior | 14,433 |  | 13,946
Revolving Loans | 64,379 |  | 80,769
Total Loans before Unearned Income | 197,888 |  | 237,961
Non-Real Estate: | Commercial and industrial | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 77 |  | 4,082
Year two | 255 |  | 660
Year three | 2,247 |  | 78
Year four | 5,103 |  | 91
Year five | 653 |  | 38
Prior | 203 |  | 80
Revolving Loans | 2,385 |  | 306
Total Loans before Unearned Income | 10,923 |  | 5,335
Non-Real Estate: | Commercial and industrial | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 71 |  | 25
Year two | 3,658 |  | 59
Year three | 41 |  | 815
Year four | 819 |  | 939
Year five | 807 |  | 193
Prior | 724 |  | 1,229
Revolving Loans | 12,146 |  | 10,962
Total Loans before Unearned Income | 18,266 |  | 14,222
Non-Real Estate: | Commercial and industrial | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 0 |  | 0
Non-Real Estate: | Commercial leases |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 2,253 |  | 48,856
Year two | 35,484 |  | 61,057
Year three | 47,707 |  | 68,308
Year four | 29,285 |  | 38,027
Year five | 20,175 |  | 3,554
Prior | 54 |  | 398
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 134,958 |  | 220,200
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 541 |  | 0
Year three | 0 |  | 0
Year four | 233 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total | 774 | 0 | 0
Non-Real Estate: | Commercial leases | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 2,253 |  | 48,856
Year two | 18,297 |  | 61,057
Year three | 20,929 |  | 47,140
Year four | 27,023 |  | 38,027
Year five | 11,982 |  | 3,554
Prior | 0 |  | 398
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 80,484 |  | 199,032
Non-Real Estate: | Commercial leases | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 18,153
Year four | 1,295 |  | 0
Year five | 0 |  | 0
Prior | 54 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 1,349 |  | 18,153
Non-Real Estate: | Commercial leases | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 17,187 |  | 0
Year three | 26,778 |  | 3,015
Year four | 967 |  | 0
Year five | 8,193 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 53,125 |  | 3,015
Non-Real Estate: | Commercial leases | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 0 |  | 0
Non-Real Estate: | Consumer and other loans |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 5,874 |  | 8,553
Year two | 4,025 |  | 14,915
Year three | 12,013 |  | 4,401
Year four | 2,029 |  | 3,576
Year five | 1,932 |  | 4,522
Prior | 8,890 |  | 6,300
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 34,763 |  | 42,267
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Year one | 209 |  | 438
Year two | 169 |  | 802
Year three | 209 |  | 1,013
Year four | 265 |  | 693
Year five | 171 |  | 283
Prior | 81 |  | 125
Revolving Loans | 0 |  | 0
Total | 1,104 | $ 2,837 | 3,354
Non-Real Estate: | Consumer and other loans | Pass |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 5,874 |  | 8,457
Year two | 3,986 |  | 14,710
Year three | 11,932 |  | 4,083
Year four | 1,866 |  | 3,257
Year five | 1,711 |  | 4,467
Prior | 8,836 |  | 6,262
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 34,205 |  | 41,236
Non-Real Estate: | Consumer and other loans | Special Mention |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 29
Year three | 1 |  | 42
Year four | 29 |  | 98
Year five | 53 |  | 26
Prior | 12 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 95 |  | 195
Non-Real Estate: | Consumer and other loans | Substandard |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 96
Year two | 39 |  | 176
Year three | 80 |  | 276
Year four | 134 |  | 221
Year five | 168 |  | 29
Prior | 42 |  | 38
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | 463 |  | 836
Non-Real Estate: | Consumer and other loans | Doubtful |  |  |
Credit exposure of loan portfolio by specific credit ratings [Abstract] |  |  |
Year one | 0 |  | 0
Year two | 0 |  | 0
Year three | 0 |  | 0
Year four | 0 |  | 0
Year five | 0 |  | 0
Prior | 0 |  | 0
Revolving Loans | 0 |  | 0
Total Loans before Unearned Income | $ 0 |  | $ 0

X
- Definition Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-2 + Details
Name: | us-gaap_FinancingReceivableDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_ConstructionAndLandDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_FarmlandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_OneToFourFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_Multi-FamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_NonFarmNonResidentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fgbi_NonRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_AgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_CommercialAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_CommercialLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fgbi_ConsumerAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |