Acquisitions (Business Acquisition, Pro Forma Information) (Details) - Universal Bancorp [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Net interest income	$ 16,608	$ 32,483
Provision for loan losses	(500)	(950)
Net interest income after provision	16,108	31,533
Non-interest income	4,804	9,517
Non-interest expense	(16,163)	(34,958)
Income before income taxes	4,749	6,092
Income tax benefit (expense)	(584)	(376)
Net income to common shareholders	$ 4,165	$ 5,716
Basic earnings per share	$ 0.49	$ 0.67
Diluted earnings per share	$ 0.48	$ 0.65