Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Dec. 31, 2016	$ 70,467	$ 4,233	$ 40,688	$ 28,399	$ (2,853)
Net income	1,994			1,994
Total other comprehensive loss, net of taxes	371				371
Employee Stock Purchase Plan	27	1	26
Common stock dividends	(551)			(551)
Restricted stock activity	19		19
Balance at Mar. 31, 2017	72,327	4,234	40,733	29,842	(2,482)
Balance at Dec. 31, 2017	75,703	4,242	40,970	32,565	(2,074)
Impact of adoption of new accounting standard (ASU 2016-01 [Member]) at Dec. 31, 2017	(9)			(44)	35
Balance at Dec. 31, 2017	75,694	4,242	40,970	32,521	(2,039)
Net income	1,004			1,004
Total other comprehensive loss, net of taxes	(1,867)				(1,867)
Common stock issued to Scottdale shareholders	64,181	1,879	62,302
Employee Stock Purchase Plan	24	1	23
Director Stock Purchase Plan	30	1	29
Restricted stock activity	58		58
Balance at Mar. 31, 2018	$ 139,124	$ 6,123	$ 103,382	$ 33,525	$ (3,906)