Parent Company Financial Statements (Statements of Cash Flows - Parent Company) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income	$ 2,721	$ 3,555	$ 6,831	$ 7,022
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense			419	328
Net cash used by operating activities			(9,202)	(7,707)
Cash flows from investing activities
Cash used in acquisitions			(29,464)	0
Net cash used in investing activities			(378,089)	(45,590)
Cash flows from financing activities
Share buyback - redeemed stock			(620)	(1,620)
Common stock dividends paid			(695)	(542)
Proceeds from exercised stock options			95	156
Net cash provided by financing activities			647,473	70,121
Net change in cash and cash equivalents			260,182	16,824
Beginning cash and cash equivalents			103,930	33,296
Ending cash and cash equivalents	364,112	50,120	364,112	50,120
Parent Company
Cash flows from operating activities
Net income	2,721	3,555	6,831	7,022
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in over (under) distributed earnings of subsidiaries	(3,617)	(3,955)	27,816	(7,820)
Stock-based compensation expense			42	31
Decrease in other assets, net			99	14
Increase (decrease) in other liabilities, net			(28)	70
Net cash used by operating activities			34,760	(683)
Cash flows from investing activities
Cash used in acquisitions			(67,944)	0
Net cash used in investing activities			(67,944)	0
Cash flows from financing activities
Share buyback - redeemed stock			(620)	(1,620)
Common stock dividends paid			(695)	(542)
Proceeds from exercised stock options			95	156
Net cash provided by financing activities			(1,220)	(2,006)
Net change in cash and cash equivalents			(34,404)	(2,689)
Beginning cash and cash equivalents			35,210	9,690
Ending cash and cash equivalents	$ 806	$ 7,001	$ 806	$ 7,001