Acquisitions (Business Acquisition, Pro Forma Information) (Details) - Universal Bancorp [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net interest income	$ 15,875	$ 15,621
Provision for loan losses	(450)	(200)
Net interest income after provision	15,425	15,421
Non-interest income	4,713	4,730
Non-interest expense	(18,795)	(14,970)
Income before income taxes	1,343	5,181
Income tax expense	208	(1,212)
Net income to common shareholders	$ 1,551	$ 3,969
Basic earnings per share	$ 0.18	$ 0.47
Diluted earnings per share	$ 0.18	$ 0.46