CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock	Preferred Stock	Paid-in capital	Retained earnings	Unearned compensation - restricted stock awards	Accumulated other comprehensive income (loss)	Total
Balance - Beginning, amount at Dec. 31, 2014	$ 272	$ 16,000	$ 41,077	$ 42,677	$ (313)	$ 2,108	$ 101,821
Balance - Beginning, shares at Dec. 31, 2014	2,720,766
Net income for the year				8,457			8,457
Other comprehensive loss, net of tax						(983)	(983)
Common stock dividends declared				(3,054)			(3,054)
Preferred stock dividends declared				(158)			(158)
Stock options exercised, amount	$ 1		182				183
Stock options exercised, shares	9,450
Issuance of common stock for executives, amount			29				29
Issuance of common stock for executives, shares	1,000
Forfeiture of restricted common stock, amount			(7)		7
Forfeiture of restricted common stock, shares	(300)
Issuance of common stock for directors fees, amount			81				81
Issuance of common stock for directors fees, shares	2,660
Stock based compensation - restricted stock awards			2		196		198
Redemption of preferred stock		(16,000)					(16,000)
Tax benefit from stock compensation
Balance - Ending, amount at Dec. 31, 2015	$ 273		41,364	47,922	(110)	1,125	90,574
Balance - Ending, shares at Dec. 31, 2015	2,733,576
Net income for the year				6,685			6,685
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 common stock, amount	$ 2		464		(466)
Issuance of restricted common stock, shares	15,800
Forfeiture of restricted common stock, amount			(3)		3
Forfeiture of restricted common 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						2,758,086
Net income for the year				6,256			$ 6,256
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 common stock, amount	$ 2		462		(464)
Issuance of restricted common stock, shares	11,800
Forfeiture of restricted common stock, amount			(28)		28
Forfeiture of restricted common 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