CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock	Paid-in capital	Retained earnings	Unearned compensation restricted stock awards	Accumulated other comprehensive income	Total
Balance - Beginning, amount at Dec. 31, 2015	$ 273	$ 41,364	$ 47,922	$ (110)	$ 1,125	$ 90,574
Balance - Beginning, shares at Dec. 31, 2015	2,733,576
Net income			6,685			6,685
Adoption of new accounting principle
Other comprehensive loss, net of tax					(648)	(648)
Common stock dividends declared			(3,086)			(3,086)
Stock options exercised, amount		87				87
Stock options exercised, shares	4,050
Issuance of restricted stock, amount	$ 2	464		(466)
Issuance of restricted stock, shares	15,800
Forfeiture of restricted stock, amount		(3)		3
Forfeiture of restricted stock, shares	(100)
Issuance of common stock for directors fees, amount	$ 1	140				141
Issuance of common stock for directors fees, shares	4,760
Stock based compensation - restricted stock awards				221		221
Tax benefit from stock compensation		33				33
Balance - Ending, amount at Dec. 31, 2016	$ 276	42,085	51,521	(352)	477	94,007
Balance - Ending, shares at Dec. 31, 2016	2,758,086
Net income			6,256			6,256
Adoption of new accounting principle
Other comprehensive loss, net of tax					(298)	(298)
Common stock dividends declared			(3,113)			(3,113)
Stock options exercised, amount	$ 1	315				316
Stock options exercised, shares	12,150
Issuance of restricted stock, amount	$ 2	462		(464)
Issuance of restricted stock, shares	11,800
Forfeiture of restricted stock, amount		(28)		28
Forfeiture of restricted stock, shares	(900)
Issuance of common stock for directors fees, amount		81				81
Issuance of common stock for directors fees, shares	2,056
Issuance of director's restricted stock awards, amount		83		(83)
Issuance of director's restricted stock awards, shares	2,024
Stock based compensation - restricted stock awards				265		265
Tax benefit from stock compensation
Balance - Ending, amount at Dec. 31, 2017	$ 279	42,998	54,664	(606)	179	$ 97,514
Balance - Ending, shares at Dec. 31, 2017	2,785,216					2,785,216
Net income			8,824			$ 8,824
Adoption of new accounting principle			(16)		16
Other comprehensive loss, net of tax					(415)	(415)
Common stock dividends declared			(3,133)			(3,133)
Stock options exercised, amount	$ 1	221				222
Stock options exercised, shares	9,155
Issuance of restricted stock, amount	$ 1	409		(410)
Issuance of restricted stock, shares	9,250
Forfeiture of restricted stock, amount		(33)		33
Forfeiture of restricted stock, shares	(800)
Issuance of director's restricted stock awards, amount		175		(175)
Issuance of director's restricted stock awards, shares	3,960
Stock based compensation - restricted stock awards				447		447
Tax benefit from stock compensation
Balance - Ending, amount at Dec. 31, 2018	$ 281	$ 43,770	$ 60,339	$ (711)	$ (220)	$ 103,459
Balance - Ending, shares at Dec. 31, 2018	2,806,781					2,806,781