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 (loss) income	Total
Balance - Beginning, amount at Dec. 31, 2017	$ 279	$ 42,998	$ 54,664	$ (606)	$ 179	$ 97,514
Balance - Beginning, shares at Dec. 31, 2017	2,785,216
Net income			6,259			6,259
Adoption of new accounting principle			(16)		16
Other comprehensive loss/income, net of tax					(1,169)	(1,169)
Common stock dividends declared			(2,346)			(2,346)
Issuance of restricted common stock, amount		175				175
Issuance of restricted common stock, shares	6,455
Stock options exercised, amount	$ 1	409		(410)
Stock options exercised, shares	9,250
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				334		334
Balance - Ending, amount at Sep. 30, 2018	$ 280	43,757	58,561	(857)	(974)	100,767
Balance - Ending, shares at Sep. 30, 2018	2,804,881
Balance - Beginning, amount at Jun. 30, 2018	$ 280	43,727	57,002	(983)	(846)	99,180
Balance - Beginning, shares at Jun. 30, 2018	2,803,126
Net income			2,344			2,344
Other comprehensive loss/income, net of tax					(128)	(128)
Common stock dividends declared			(785)			(785)
Issuance of restricted common stock, amount	$ 1	(1)
Issuance of restricted common stock, shares
Stock options exercised, amount	$ (1)	31				30
Stock options exercised, shares	1,755
Stock based compensation - restricted stock awards				126		126
Balance - Ending, amount at Sep. 30, 2018	$ 280	43,757	58,561	(857)	(974)	100,767
Balance - Ending, shares at Sep. 30, 2018	2,804,881
Balance - Beginning, amount at Dec. 31, 2018	$ 281	43,770	60,339	(711)	(220)	$ 103,459
Balance - Beginning, shares at Dec. 31, 2018	2,806,781					2,806,781
Net income			8,126			$ 8,126
Other comprehensive loss/income, net of tax					1,929	1,929
Common stock dividends declared			(2,361)			(2,361)
Issuance of restricted common stock, amount	$ 1	457		(458)
Issuance of restricted common stock, shares	11,530
Stock options exercised, amount		34				34
Stock options exercised, shares	2,025
Forfeiture of restricted stock, amount		(31)		31
Forfeiture of restricted stock, shares	(710)
Issuance of director's restricted stock awards, amount		142		(142)
Issuance of director's restricted stock awards, shares	3,600
Stock based compensation - restricted stock awards				393		393
Balance - Ending, amount at Sep. 30, 2019	$ 282	44,372	66,104	(887)	1,709	$ 111,580
Balance - Ending, shares at Sep. 30, 2019	2,823,212					2,823,212
Balance - Beginning, amount at Jun. 30, 2019	$ 282	44,382	63,905	(1,075)	1,454	$ 108,948
Balance - Beginning, shares at Jun. 30, 2019	2,823,476
Net income			2,988			2,988
Other comprehensive loss/income, net of tax					255	255
Common stock dividends declared			(789)			(789)
Stock options exercised, amount
Stock options exercised, shares
Forfeiture of restricted stock, amount		(10)		10
Forfeiture of restricted stock, shares	(250)
Retired common stock, amount
Retired common stock, shares	(14)
Stock based compensation - restricted stock awards				178		178
Balance - Ending, amount at Sep. 30, 2019	$ 282	$ 44,372	$ 66,104	$ (887)	$ 1,709	$ 111,580
Balance - Ending, shares at Sep. 30, 2019	2,823,212					2,823,212