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Business Combinations (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
Aug. 30, 2019
Sep. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Business Acquisition [Line Items]              
Total assets   $ 2,433,210   $ 2,328,864      
Deposits   2,040,652   1,799,720      
Equity   293,223   262,320 $ 248,789    
Maple Leaf              
Business Acquisition [Line Items]              
Total assets     $ 277,800        
Gross loans     186,400        
Deposits     191,000        
Equity     32,900        
COMMON STOCK              
Business Acquisition [Line Items]              
Equity   $ 186,018 $ 185,687 $ 186,163 $ 185,840 $ 186,931 $ 186,903
Maple Leaf              
Business Acquisition [Line Items]              
Business acquisition, date of merger agreement Aug. 30, 2019            
Maple Leaf | COMMON STOCK              
Business Acquisition [Line Items]              
Cash consideration per share | $ / shares $ 640.00            
Shares of stock issued for acquisition | shares 45.5948            
Maximum shares exchanged for cash 50.00%            
Maximum shares exchanged for stock 50.00%            
Exercise price of warrants $ 370.00