Merger Transaction - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Nov. 07, 2019
Business Acquisition [Line Items]
Goodwill	$ 13,217	$ 12,942
Premier Bancsares, Inc.
Business Acquisition [Line Items]
Cash and due from banks			$ 20,058
Securities available for sale			38,813
Loans			184,025
Premises and equipment			7,223
Goodwill			9,744
Intangible assets			4,213
Other real estate			1,595
Other assets			9,303
Total assets acquired			274,974
Deposits			204,979
FHLB borrowings			16,617
Repurchase agreements			6,863
Other liabilities			3,132
Total liabilities assumed			231,591
Net assets acquired			$ 43,383