Acquisitions (Summary of Proforma Combined) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2017
Net interest income		$ 38,209
Noninterest income		10,999
Total revenue		49,208
Net income available to common shareholders		$ 5,377
Earnings per common share
Basic		$ 0.22
Diluted		$ 0.22
Carolina Bank [Member]
Net interest income	$ 1,886
Noninterest income	503
Total revenue	2,389
Net income available to common shareholders	$ 210
Earnings per common share
Basic	$ 0.00
Diluted	$ 0.00