Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest and Dividend Income:
Interest and fees on loans	$ 29,191	$ 26,322	$ 25,972
Interest on due from banks	15	48	15
Interest on federal funds sold	8	6	2
Interest on securities:
Taxable	1,964	1,802	2,510
Tax-exempt	1,601	1,535	1,663
Dividends and interest on all other securities	155	113	133
Total interest and dividend income	32,934	29,826	30,295
Interest Expense:
Interest on savings deposits	342	227	227
Interest on time deposits	2,208	2,116	2,144
Interest on federal funds purchased, securities sold under agreements to repurchase and other borrowings	38	25	30
Interest on Federal Home Loan Bank advances	424	206	1,231
Total interest expense	3,012	2,574	3,632
Net interest income	29,922	27,252	26,663
Provision for loan losses	4,160	1,930	1,025
Net interest income, after provision for loan losses	25,762	25,322	25,638
Noninterest Income:
Fiduciary and asset management fees	3,786	3,560	3,617
Service charges on deposit accounts	3,874	4,052	4,021
Other service charges, commissions and fees	4,182	3,940	4,084
Bank-owned life insurance income	774	795	885
Mortgage banking income	645	413	259
Gain on sale of available-for-sale securities, net	96	522	76
Gain on acquisition of Old Point Mortgage	550	0	0
Other operating income	151	184	194
Total noninterest income	14,058	13,466	13,136
Noninterest Expense:
Salaries and employee benefits	20,863	19,878	20,747
Pension termination settlement	3,350	0	0
Occupancy and equipment	5,864	5,575	5,330
Data processing	1,783	1,620	1,625
FDIC insurance	478	483	586
Customer development	575	612	584
Professional services	2,069	2,122	1,413
Employee professional development	794	659	591
Loan related expenses	616	192	146
Other taxes	563	505	439
Prepayment fee on Federal Home Loan Bank advance	0	391	0
Loss (gain) on other real estate owned	(18)	154	957
Merger expenses	241	0	0
Other operating expenses	2,768	2,640	2,668
Total noninterest expense	39,946	34,831	35,086
Income (loss) before income taxes	(126)	3,957	3,688
Income tax expense (benefit)	(97)	160	54
Net income (loss)	$ (29)	$ 3,797	$ 3,634
Basic earnings (loss) per share:
Weighted average shares outstanding (in shares)	4,991,060	4,959,173	4,959,009
Net income (loss) per share of common stock (in dollars per share)	$ (0.01)	$ 0.77	$ 0.73
Diluted earnings (loss) per share:
Weighted average shares outstanding (in shares)	4,991,060	4,960,934	4,959,009
Net income (loss) per share of common stock (in dollars per share)	$ (0.01)	$ 0.77	$ 0.73