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Business Acquisitions (Details Textual)
$ / shares in Units, $ in Thousands
May 01, 2019
USD ($)
bank
$ / shares
shares
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]      
Goodwill   $ 16,477 $ 16,477
LBC Bancshares, Inc      
Business Acquisition [Line Items]      
Number of banking locations | bank 2    
Share price (in dollars per share) | $ / shares $ 23.50    
Number of shares received for each share of LBC common stock | shares 1.3239    
Stock consideration received, percentage of shares 55.00%    
Cash consideration received, percentage of shares 45.00%    
Minimum percentage of merger consideration paid 50.00%    
Share of stock issued (in shares) | shares 1,053,875    
Fair value of shares issued $ 18,706    
Cash consideration paid 15,315    
Goodwill 15,734    
Loans purchased at fair value 130,568    
Discount on loans purchased $ 2,200    
Discount on loans purchased, percentage of loan value 1.63%    
Credit impaired loans acquired $ 176    
LBC Bancshares, Inc | LaGrange, Georgia      
Business Acquisition [Line Items]      
Number of banking locations | bank 1    
LBC Bancshares, Inc | Columbus, Georgia      
Business Acquisition [Line Items]      
Number of banking locations | bank 1    
PFB Mortgage      
Business Acquisition [Line Items]      
Cash consideration paid $ 833    
Goodwill $ 541