Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained Earnings	Treasury Stock	Accumulated other comprehensive (loss) income
Balances at Dec. 31, 2017	$ 58,661	$ 9,882	$ 755	$ 57,197	$ (4,077)	$ (5,096)
Common Stock, Shares, net of treasury at Dec. 31, 2017		4,465,576
Net income	7,072			7,072
Other comprehensive income	4,073					4,073
Dividend reinvestment plan	30		25		5
Dividend reinvestment plan, shares		583
Cash dividends declared ($1.24 and $1.20 per share for the year ended December 31, 2019 and 2018, respectively)	(5,358)			(5,358)
Stock based compensation expense	120	$ 6	114
Stock based compensation expense, shares		2,729
Exercise of stock options	0
Purchase of treasury stock	(107)				(107)
Purchase of treasury stock, shares		(2,209)
Balances at Dec. 31, 2018	64,491	$ 9,888	894	58,911	(4,179)	(1,023)
Common Stock, Shares, net of treasury at Dec. 31, 2018		4,466,679
Net income	10,648			10,648
Other comprehensive income	2,009					2,009
Dividend reinvestment plan	39		30		9
Dividend reinvestment plan, shares		1,042
Cash dividends declared ($1.24 and $1.20 per share for the year ended December 31, 2019 and 2018, respectively)	(5,540)			(5,540)
Stock based compensation expense	165	$ 5	160
Stock based compensation expense, shares		2,556
Exercise of stock options	44	$ 4	40
Exercise of stock options, shares		2,000
Purchase of treasury stock	(13)				(13)
Purchase of treasury stock, shares		(300)
Balances at Dec. 31, 2019	$ 71,843	$ 9,897	$ 1,124	$ 64,019	$ (4,183)	$ 986
Common Stock, Shares, net of treasury at Dec. 31, 2019		4,471,977