Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income
Interest and fees on loans	$ 31,333	$ 29,932	$ 29,365
Interest on interest-bearing deposits	672	791	532
Interest and dividends on securities – taxable	6,856	5,711	5,910
Interest on securities – nontaxable	4,363	4,826	5,123
Total interest income	43,224	41,260	40,930
Interest Expense
Interest on deposits	4,883	4,125	4,166
Interest on borrowings	164
Total interest expense	5,047	4,125	4,166
Net interest income	38,177	37,135	36,764
Provision for (recovery of) loan losses	(81)	157	1,650
Net interest income after provision for (recovery of) loan losses	38,258	36,978	35,114
Noninterest Income:
Noninterest Income	6,266	6,114	5,412
BOLI income	901	758	597
Other income	1,005	1,148	1,289
Realized securities gains, net	17	14	232
Total noninterest income	7,729	7,636	7,115
Noninterest Expense
Salaries and employee benefits	14,506	13,670	12,684
Occupancy, furniture and fixtures	1,845	1,820	1,849
Data processing and ATM	2,784	2,280	2,151
FDIC assessment	359	364	476
Intangible assets amortization	50	68	257
Net costs of other real estate owned	553	205	472
Franchise taxes	1,278	1,315	1,296
Write-down of insurance receivable	2,010		347
Other operating expenses	3,891	4,507	3,803
Total noninterest expense	27,276	24,229	23,335
Income before income taxes	18,711	20,385	18,894
Income tax expense	2,560	6,293	3,952
Net income	$ 16,151	$ 14,092	$ 14,942
Basic net income per common share (in dollars per share)	$ 2.32	$ 2.03	$ 2.15
Fully diluted net income per common share (in dollars per share)	$ 2.32	$ 2.03	$ 2.15
Deposit Account [Member]
Noninterest Income:
Noninterest Income	$ 2,678	$ 2,776	$ 2,458
Product and Service, Other [Member]
Noninterest Income:
Noninterest Income	132	205	212
Credit and Debit Card [Member]
Noninterest Income:
Noninterest Income	1,431	1,205	981
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest Income	$ 1,565	$ 1,530	$ 1,346