Acquisitions (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands							12 Months Ended
	Dec. 15, 2020	Sep. 28, 2020	Apr. 24, 2020	Jan. 01, 2020	Sep. 17, 2019	Jan. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Net income							$ 31,326	$ 31,866	$ 28,072
Goodwill							$ 45,495	12,658
Peoples Bankshares Inc [Member]
Business Acquisition [Line Items]
Percentage of ownership acquired						100.00%
Business Acquisition, Share Price, Number Of Shares						465,931
Value of assets acquired									133,000
Value of liabilities acquired									$ 113,000
Cornerstone Financial Services Inc. [Member]
Business Acquisition [Line Items]
Percentage of ownership acquired				100.00%
Business Acquisition, Share Price, Number Of Shares				570,000	228
Value of assets acquired				$ 195,029				195,000
Value of liabilities acquired				176,313				$ 176,000
Goodwill				10,820
Business Acquisition, Share Price					$ 5,700.00
Business Acquisition Combination of Equity and Cash Cash					50.00%
Business Acquisition Combination of Equity and Cash, Common Stock					50.00%
MVB Bank [Member]
Business Acquisition [Line Items]
Value of assets acquired			$ 38,417
Value of liabilities acquired			188,236
Goodwill			14,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Estimated			188,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Estimated			$ 38,400
Number of days of average daily closing balance of deposits prior to closing			30 days
Percent multiplier used to calculate purchase price			8.00%
WinFirst Financial Corp [Domain]
Business Acquisition [Line Items]
Percentage of ownership acquired	100.00%
Value of assets acquired	$ 143,435
Value of liabilities acquired	127,454
Goodwill	$ 7,210
Business Acquisition, Share Price		$ 328.05
Cash Consideration [Member] | Cornerstone Financial Services Inc. [Member]
Business Acquisition [Line Items]
Consideration paid in acquisition				14,300
Cash Consideration [Member] | MVB Bank [Member]
Business Acquisition [Line Items]
Consideration paid in acquisition			$ 13,000
Cash Consideration [Member] | WinFirst Financial Corp [Domain]
Business Acquisition [Line Items]
Consideration paid in acquisition		$ 21,700
Stock Consideration [Member] | Peoples Bankshares Inc [Member]
Business Acquisition [Line Items]
Consideration paid in acquisition						$ 12,700
Stock Consideration [Member] | Cornerstone Financial Services Inc. [Member]
Business Acquisition [Line Items]
Consideration paid in acquisition				$ 15,400
Core Deposits | Cornerstone Financial Services Inc. [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				10 years
Core Deposits | MVB Bank [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			10 years
Core Deposits | WinFirst Financial Corp [Domain]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years