Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained earnings	Treasury stock	Accumulated other comprehensive income (loss)
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	5,151			5,151
Other comprehensive income	1,745					1,745
Dividend reinvestment plan	20		16		4
Dividend reinvestment plan, shares		466
Cash dividends declared ($0.32 and $0.31 per share for the three months ended June 30, 2020 and 2019, respectively, and $0.64 and $0.62 per share for the six months ended June 30, 2020 and 2019, respectively)	(2,770)			(2,770)
Stock based compensation expense	90		90
Exercise of stock options	22	$ 2	20
Exercise of stock options, shares		1,000
Purchase of treasury stock	(13)				(13)
Purchase of treasury stock, shares		(300)
Balances at Jun. 30, 2019	68,736	$ 9,890	1,020	61,292	(4,188)	722
Common Stock, Shares, net of treasury at Jun. 30, 2019		4,467,845
Balances at Mar. 31, 2019	66,731	$ 9,890	967	60,147	(4,190)	(83)
Common Stock, Shares, net of treasury at Mar. 31, 2019		4,467,625
Net income	2,530			2,530
Other comprehensive income	805					805
Dividend reinvestment plan	8		6		2
Dividend reinvestment plan, shares		220
Cash dividends declared ($0.32 and $0.31 per share for the three months ended June 30, 2020 and 2019, respectively, and $0.64 and $0.62 per share for the six months ended June 30, 2020 and 2019, respectively)	(1,385)			(1,385)
Stock based compensation expense	47		47
Balances at Jun. 30, 2019	68,736	$ 9,890	1,020	61,292	(4,188)	722
Common Stock, Shares, net of treasury at Jun. 30, 2019		4,467,845
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
Net income	4,864			4,864
Other comprehensive income	1,731					1,731
Dividend reinvestment plan	19		13		6
Dividend reinvestment plan, shares		737
Cash dividends declared ($0.32 and $0.31 per share for the three months ended June 30, 2020 and 2019, respectively, and $0.64 and $0.62 per share for the six months ended June 30, 2020 and 2019, respectively)	(2,863)			(2,863)
Stock based compensation expense	151	$ 2	149
Stock based compensation expense, shares		1,185
Exercise of stock options	22	$ 2	20
Exercise of stock options, shares		1,000
Balances at Jun. 30, 2020	75,767	$ 9,901	1,306	66,020	(4,177)	2,717
Common Stock, Shares, net of treasury at Jun. 30, 2020		4,474,899
Balances at Mar. 31, 2020	73,788	$ 9,899	1,226	64,783	(4,181)	2,061
Common Stock, Shares, net of treasury at Mar. 31, 2020		4,473,200
Net income	2,668			2,668
Other comprehensive income	656					656
Dividend reinvestment plan	11		7		4
Dividend reinvestment plan, shares		514
Cash dividends declared ($0.32 and $0.31 per share for the three months ended June 30, 2020 and 2019, respectively, and $0.64 and $0.62 per share for the six months ended June 30, 2020 and 2019, respectively)	(1,431)			(1,431)
Stock based compensation expense	75	$ 2	73
Stock based compensation expense, shares		1,185
Balances at Jun. 30, 2020	$ 75,767	$ 9,901	$ 1,306	$ 66,020	$ (4,177)	$ 2,717
Common Stock, Shares, net of treasury at Jun. 30, 2020		4,474,899