Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Income
Interest and fees on loans	$ 33,869	$ 31,333	$ 29,932
Interest on interest-bearing deposits	1,523	672	791
Interest and dividends on securities – taxable	6,725	6,856	5,711
Interest on securities – nontaxable	3,030	4,363	4,826
Total interest income	45,147	43,224	41,260
Interest Expense
Interest on deposits	7,380	4,883	4,125
Interest on borrowings		164
Total interest expense	7,380	5,047	4,125
Net interest income	37,767	38,177	37,135
Provision for (recovery of) loan losses	126	(81)	157
Net interest income after provision for (recovery of) loan losses	37,641	38,258	36,978
Noninterest Income:
Noninterest Income	6,154	6,266	6,114
BOLI income	910	901	758
Other income	1,643	1,005	1,148
Realized securities gains, net	566	17	14
Total noninterest income	8,790	7,729	7,636
Noninterest Expense
Salaries and employee benefits	15,298	14,506	13,670
Occupancy, furniture and fixtures	1,866	1,845	1,820
Data processing and ATM	3,171	2,784	2,280
FDIC assessment	167	359	364
Intangible assets amortization		50	68
Net costs of other real estate owned	47	553	205
Franchise taxes	1,333	1,278	1,315
Write-down of insurance receivable		2,010
Other operating expenses	3,872	3,891	4,507
Total noninterest expense	25,754	27,276	24,229
Income before income taxes	20,677	18,711	20,385
Income tax expense	3,211	2,560	6,293
Net income	$ 17,466	$ 16,151	$ 14,092
Basic net income per common share (in dollars per share)	$ 2.65	$ 2.32	$ 2.03
Fully diluted net income per common share (in dollars per share)	$ 2.65	$ 2.32	$ 2.03
Deposit Account [Member]
Noninterest Income:
Noninterest Income	$ 2,453	$ 2,678	$ 2,776
Product and Service, Other [Member]
Noninterest Income:
Noninterest Income	198	132	205
Credit and Debit Card [Member]
Noninterest Income:
Noninterest Income	1,398	1,431	1,205
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest Income	$ 1,622	$ 1,565	$ 1,530