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Leases (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Lessee Lease Description [Line Items]      
Operating leases options to extend [true false] true    
Operating leases Options to terminate 5 months    
Operating lease, description The Company has operating leases for branch office locations, vehicles and certain office equipment such as printers, copiers and faxes. The leases have remaining lease terms of 5 months to 8.83 years, some of which include options to extend the lease for up to 10 years and some of which include options to terminate the leases within 5 months.    
Operating lease, right-of-use asset $ 4,600 $ 4,900 $ 4,800
Operating lease, liability 4,804 5,000 $ 5,000
Operating lease, payments 202 195  
Finance leases, interest expense 36 23  
Finance leases, amortization expense $ 121 $ 107  
Weighted average remaining lease term 4 years 7 months 6 days    
Weighted-average discount rate 3.00%    
Minimum      
Lessee Lease Description [Line Items]      
Operating leases remaining lease terms 5 months    
Maximum      
Lessee Lease Description [Line Items]      
Operating leases remaining lease terms 8 years 9 months 29 days    
Operating leases options to extend 10 years