Merger (Merger, Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Merger [Abstract]
Net interest income after loan loss provision	$ 5,147	$ 5,027	$ 15,596	$ 14,930
Noninterest income	1,241	1,216	3,701	4,068
Noninterest expense	4,847	4,737	13,959	13,916
Net income available to common shareholders	$ 1,531	$ 1,428	$ 5,179	$ 5,176
Consolidated net income per common share	$ 0.30	$ 0.28	$ 1.01	$ 1.02