CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - UNAUDITED - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at at Dec. 31, 2017	$ 563,816	$ 23,996	$ 168,188	$ 378,489	$ (6,857)
Net income	21,665	0	0	21,665	0
Other comprehensive income, net of tax	(9,284)	0	0	0	(9,284)
Common stock dividends - $0.28 and $0.26 per share at March 31, 2019 and 2018 respectively	(9,267)	0	0	(9,267)	0
Stock compensation expense	582	0	582	0	0
Common stock issued pursuant to:
Acquisition of WashingtonFirst - 11,446,197 shares	446,640	11,446	435,194	0	0
Stock option plan - 6,755 and 12,353 shares at March 31, 2019 and 2018 respectively	232	12	220	0	0
Employee stock purchase plan - 7,662 and 6,912 shares at March 31, 2019 and 2018 respectively	224	7	217
Restricted stock - 11,959 and 1,514 shares at March 31, 2019 and 2018 respectively	0	2	(2)	0	0
Reclassfication of tax effects from other comprehensive income	0			1,477	(1,477)
Balance at at Mar. 31, 2018	1,014,608	35,463	604,399	392,364	(17,618)
Balance at at Dec. 31, 2018	1,067,903	35,531	606,573	441,553	(15,754)
Net income	30,317	0	0	30,317	0
Other comprehensive income, net of tax	6,704	0	0	0	6,704
Common stock dividends - $0.28 and $0.26 per share at March 31, 2019 and 2018 respectively	(10,008)	0	0	(10,008)	0
Stock compensation expense	690	0	690	0	0
Common stock issued pursuant to:
Stock option plan - 6,755 and 12,353 shares at March 31, 2019 and 2018 respectively	129	7	122	0	0
Employee stock purchase plan - 7,662 and 6,912 shares at March 31, 2019 and 2018 respectively	214	7	207	0	0
Restricted stock - 11,959 and 1,514 shares at March 31, 2019 and 2018 respectively	(101)	12	(113)	0	0
Balance at at Mar. 31, 2019	$ 1,095,848	$ 35,557	$ 607,479	$ 461,862	$ (9,050)