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Intangible and Other Non-Current Assets - Aggregate amortization expense for our intangible assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Noncompete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of 2020 $ 160  
2021 588  
2022 481  
2023 434  
2024 380  
Thereafter 872  
Total amortization expense 2,915 $ 3,915
Commissions [Member]    
Finite-Lived Intangible Assets [Line Items]    
Remainder of 2020 149  
2021 565  
2022 519  
2023 464  
2024 401  
Thereafter 987  
Total amortization expense $ 3,085 $ 2,818