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Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating Lease and Related Expense [Abstract]      
Operating lease expense $ 2,629    
Cash paid for operating leases included in operating cash flows 2,727    
Assets and Liabilities [Abstract]      
Operating lease right-of-use asset 3,853    
Operating lease short-term liability included in other current liabilities 1,846    
Operating lease long-term liability included in other long-term liabilities $ 2,020    
Weighted average remaining lease term (in years) 4 years 7 months 28 days    
Weighted average discount rate used in calculating right-of-use asset 3.56%    
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent    
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesNoncurrent    
Future Annual Minimum Lease Payments [Abstract]      
2020 $ 1,960    
2021 717    
2022 418    
2023 252    
2024 146    
2025 and thereafter 776    
Total 4,269    
Less interest (403)    
Present value of lease liabilities $ 3,866    
Operating lease expense   $ 3,618 $ 3,211
Minimum Rental Commitments [Abstract]      
2019   1,992  
2020   1,100  
2021   388  
2022   144  
2023   66  
2024 and thereafter   12  
Total   3,702  
Minimum [Member]      
Lessee, Operating Lease, Description [Abstract]      
Loan length used to estimate borrowing rates 1 year    
Maximum [Member]      
Lessee, Operating Lease, Description [Abstract]      
Loan length used to estimate borrowing rates 20 years    
ASU 2016-02 [Member]      
Assets and Liabilities [Abstract]      
Operating lease right-of-use asset   $ 4,993