Loans - Schedule of Loans and Acquired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 1,830,815	$ 1,357,476
Net deferred loan (fees) costs	1,197	720
Overdraft deposits	134	127
Outstanding principal balance and the carrying amount of loan acquired [Abstract]
Outstanding principal balance	393,618	63,619
Carrying amount	377,130	58,886
Outstanding principal balance and the carrying amount of loan acquired, impaired [Abstract]
Outstanding principal balance	53,600	24,500
Carrying amount	43,028	20,611
Changes in the accretable discount on acquired loans [Abstract]
Balance at January 1	4,633	4,890	$ 6,103
Additions from merger with HomeTown	4,410	0	0
Accretion	(3,304)	(2,362)	(3,117)
Reclassification from nonaccretable difference	736	956	1,006
Other changes, net	1,418	1,149	898
Balance at December 31	7,893	4,633	$ 4,890
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	339,077	285,972
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,037,119	753,040
Commercial Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	137,920	97,240
Commercial Real Estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	899,199	655,800
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	443,738	313,371
Residential Real Estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	324,315	209,438
Residential Real Estate | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	119,423	103,933
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 10,881	$ 5,093