CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at Dec. 31, 2018	$ 11,993	$ 37,255	$ 75,798	$ (2,581)	$ (5,709)	$ 116,756
Balance (in shares) at Dec. 31, 2018	5,996,322
Net Income			2,243			2,243
Other comprehensive income, net of taxes				3,642		3,642
Issuance of common stock under dividend reinvestment plan	$ 24	254				278
Issuance of common stock under dividend reinvestment plan (in shares)	12,312
Dividends - $0.27 per share			(1,557)			(1,557)
Balance at Mar. 31, 2019	$ 12,017	37,509	76,484	1,061	(5,709)	121,362
Balance (in shares) at Mar. 31, 2019	6,008,634
Balance at Dec. 31, 2018	$ 11,993	37,255	75,798	(2,581)	(5,709)	116,756
Balance (in shares) at Dec. 31, 2018	5,996,322
Net Income						7,696
Other comprehensive income, net of taxes						7,264
Balance at Sep. 30, 2019	$ 12,070	38,082	78,814	4,683	(5,709)	127,940
Balance (in shares) at Sep. 30, 2019	6,035,118
Balance at Mar. 31, 2019	$ 12,017	37,509	76,484	1,061	(5,709)	121,362
Balance (in shares) at Mar. 31, 2019	6,008,634
Net Income			2,530			2,530
Other comprehensive income, net of taxes				3,057		3,057
Issuance of common stock under dividend reinvestment plan	$ 26	292				318
Issuance of common stock under dividend reinvestment plan (in shares)	12,821
Dividends - $0.27 per share			(1,560)			(1,560)
Balance at Jun. 30, 2019	$ 12,043	37,801	77,454	4,118	(5,709)	125,707
Balance (in shares) at Jun. 30, 2019	6,021,455
Net Income			2,923			2,923
Other comprehensive income, net of taxes				565		565
Issuance of common stock under dividend reinvestment plan	$ 27	281				308
Issuance of common stock under dividend reinvestment plan (in shares)	13,663
Dividends - $0.27 per share			(1,563)			(1,563)
Balance at Sep. 30, 2019	$ 12,070	38,082	78,814	4,683	(5,709)	127,940
Balance (in shares) at Sep. 30, 2019	6,035,118
Balance at Dec. 31, 2019	$ 12,097	38,365	79,778	4,221	(5,709)	128,752
Balance (in shares) at Dec. 31, 2019	6,048,506
Net Income			2,053			2,053
Other comprehensive income, net of taxes				605		605
Issuance of common stock under dividend reinvestment plan	$ 30	280				310
Issuance of common stock under dividend reinvestment plan (in shares)	15,213
Dividends - $0.27 per share			(1,570)			(1,570)
Balance at Mar. 31, 2020	$ 12,127	38,645	80,261	4,826	(5,709)	130,150
Balance (in shares) at Mar. 31, 2020	6,063,719
Balance at Dec. 31, 2019	$ 12,097	38,365	79,778	4,221	(5,709)	128,752
Balance (in shares) at Dec. 31, 2019	6,048,506
Net Income						8,571
Other comprehensive income, net of taxes						6,894
Balance at Sep. 30, 2020	$ 12,195	39,243	83,625	11,115	(5,709)	140,469
Balance (in shares) at Sep. 30, 2020	6,097,519
Balance at Mar. 31, 2020	$ 12,127	38,645	80,261	4,826	(5,709)	130,150
Balance (in shares) at Mar. 31, 2020	6,063,719
Net Income			3,381			3,381
Other comprehensive income, net of taxes				5,245		5,245
Issuance of common stock under dividend reinvestment plan	$ 33	298				331
Issuance of common stock under dividend reinvestment plan (in shares)	16,135
Dividends - $0.27 per share			(1,575)			(1,575)
Balance at Jun. 30, 2020	$ 12,160	38,943	82,067	10,071	(5,709)	137,532
Balance (in shares) at Jun. 30, 2020	6,079,854
Net Income			3,137			3,137
Other comprehensive income, net of taxes				1,044		1,044
Issuance of common stock under dividend reinvestment plan	$ 35	300				335
Issuance of common stock under dividend reinvestment plan (in shares)	17,665
Dividends - $0.27 per share			(1,579)			(1,579)
Balance at Sep. 30, 2020	$ 12,195	$ 39,243	$ 83,625	$ 11,115	$ (5,709)	$ 140,469
Balance (in shares) at Sep. 30, 2020	6,097,519