Loans, Credit Exposure of Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	$ 1,192,056	$ 1,151,497
Unearned income	(2,670)	(2,483)
Total loans net of unearned income	1,189,386	1,149,014
Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	1,130,067	1,071,513
Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	20,570	25,929
Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	40,887	49,495
Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	532	4,560
Real Estate [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	903,039	844,160
Real Estate [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	851,764	802,516
Real Estate [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	16,934	5,679
Real Estate [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	33,809	35,965
Real Estate [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	532	0
Real Estate [Member] | Construction & Land Development [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	107,578	112,603
Real Estate [Member] | Construction & Land Development [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	102,252	108,200
Real Estate [Member] | Construction & Land Development [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	2,399	125
Real Estate [Member] | Construction & Land Development [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	2,927	4,278
Real Estate [Member] | Construction & Land Development [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	0
Real Estate [Member] | Farmland [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	19,422	25,691
Real Estate [Member] | Farmland [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	13,441	25,030
Real Estate [Member] | Farmland [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	5,451	569
Real Estate [Member] | Farmland [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	530	92
Real Estate [Member] | Farmland [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	0
Real Estate [Member] | 1 - 4 Family [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	166,399	158,733
Real Estate [Member] | 1 - 4 Family [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	155,528	149,426
Real Estate [Member] | 1 - 4 Family [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	2,835	1,856
Real Estate [Member] | 1 - 4 Family [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	8,036	7,451
Real Estate [Member] | 1 - 4 Family [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	0
Real Estate [Member] | Multifamily [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	43,015	16,840
Real Estate [Member] | Multifamily [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	36,282	9,366
Real Estate [Member] | Multifamily [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	639
Real Estate [Member] | Multifamily [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	6,733	6,835
Real Estate [Member] | Multifamily [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	0
Real Estate [Member] | Non-Farm Non-Residential [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	566,625	530,293
Real Estate [Member] | Non-Farm Non-Residential [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	544,261	510,494
Real Estate [Member] | Non-Farm Non-Residential [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	6,249	2,490
Real Estate [Member] | Non-Farm Non-Residential [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	15,583	17,309
Real Estate [Member] | Non-Farm Non-Residential [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	532	0
Non-Real Estate [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	289,017	307,337
Non-Real Estate [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	278,303	268,997
Non-Real Estate [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	3,636	20,250
Non-Real Estate [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	7,078	13,530
Non-Real Estate [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	4,560
Non-Real Estate [Member] | Agricultural [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	29,118	21,514
Non-Real Estate [Member] | Agricultural [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	24,661	19,050
Non-Real Estate [Member] | Agricultural [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	1,668	995
Non-Real Estate [Member] | Agricultural [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	2,789	1,469
Non-Real Estate [Member] | Agricultural [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	0
Non-Real Estate [Member] | Commercial and Industrial [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	194,136	230,638
Non-Real Estate [Member] | Commercial and Industrial [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	188,289	201,722
Non-Real Estate [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	1,778	19,187
Non-Real Estate [Member] | Commercial and Industrial [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	4,069	5,169
Non-Real Estate [Member] | Commercial and Industrial [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	0	4,560
Non-Real Estate [Member] | Consumer and Other [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	65,763	55,185
Non-Real Estate [Member] | Consumer and Other [Member] | Pass [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	65,353	48,225
Non-Real Estate [Member] | Consumer and Other [Member] | Special Mention [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	190	68
Non-Real Estate [Member] | Consumer and Other [Member] | Substandard [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	220	6,892
Non-Real Estate [Member] | Consumer and Other [Member] | Doubtful [Member]
Credit exposure of loan portfolio by specific credit ratings [Abstract]
Loans before unearned income	$ 0	$ 0