Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 16,553	$ 21,305
Financing Receivable, Recorded Investment, Current	1,918,153	1,891,717
Total	1,934,706	1,913,022
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,178	1,092
Financing Receivable, Recorded Investment, Current	485,973	474,709
Total	487,151	475,801
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,240	4,012
Financing Receivable, Recorded Investment, Current	102,493	104,457
Total	105,733	108,469
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,493	141
Financing Receivable, Recorded Investment, Current	183,148	200,804
Total	185,641	200,945
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	600	702
Financing Receivable, Recorded Investment, Current	137,526	152,388
Total	138,126	153,090
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	127	0
Financing Receivable, Recorded Investment, Current	227,628	207,875
Total	227,755	207,875
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,247	8,218
Financing Receivable, Recorded Investment, Current	242,541	247,029
Total	245,788	255,247
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	278	364
Financing Receivable, Recorded Investment, Current	36,495	35,752
Total	36,773	36,116
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	230	574
Financing Receivable, Recorded Investment, Current	44,709	41,688
Total	44,939	42,262
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	103,207	90,141
Total	103,207	90,141
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	312
Financing Receivable, Recorded Investment, Current	12,819	13,329
Total	12,819	13,641
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,052	5,761
Financing Receivable, Recorded Investment, Current	315,546	298,211
Total	320,598	303,972
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	108	129
Financing Receivable, Recorded Investment, Current	26,068	25,334
Total	26,176	25,463
Financing Receivables, 30 to 59 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	6,030	12,223
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	388	372
Financing Receivables, 30 to 59 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	34	341
Financing Receivables, 30 to 59 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	61	141
Financing Receivables, 30 to 59 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	440	141
Financing Receivables, 30 to 59 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	127	0
Financing Receivables, 30 to 59 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	591	5,467
Financing Receivables, 30 to 59 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	158	310
Financing Receivables, 30 to 59 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	138	274
Financing Receivables, 30 to 59 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	300
Financing Receivables, 30 to 59 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,994	4,770
Financing Receivables, 30 to 59 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	99	107
Financing Receivables, 60 to 89 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,905	2,268
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	69	80
Financing Receivables, 60 to 89 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	33	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	949	1,317
Financing Receivables, 60 to 89 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	85	46
Financing Receivables, 60 to 89 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	29	106
Financing Receivables, 60 to 89 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	733	697
Financing Receivables, 60 to 89 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	7	22
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	8,618	6,814
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	721	640
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,206	3,671
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,399	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	160	561
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,707	1,434
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	35	8
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	63	194
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	12
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	325	294
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 2	$ 0