Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at beginning of period at Dec. 31, 2016	$ 65,415	$ 18,629	$ 9,815	$ 42,629	$ (4,784)	$ (874)
Net income	5,322			5,322
Other comprehensive (loss) income	802					802
Cash dividends declared	(1,701)			(1,701)
Balance at end of period at Sep. 30, 2017	69,838	18,629	9,815	46,250	(4,784)	(72)
Balance at beginning of period at Dec. 31, 2017	70,532	18,629	9,815	47,535	(4,784)	(663)
Net income	6,920			6,920
Other comprehensive (loss) income	(1,601)					(1,601)
Cumulative effect adjustment equity securities, related to ASU adoption				29		(29)
Cash dividends declared	(1,974)			(1,974)
Balance at end of period at Sep. 30, 2018	$ 73,877	$ 18,629	$ 9,815	$ 52,510	$ (4,784)	$ (2,293)