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Leases- Minimum Annual Rental Commitments (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Minimum annual rental commitments    
2020 $ 438  
2021 1,710  
2022 1,552  
2023 1,226  
2024 892  
Thereafter 1,911  
Total lease payments 7,729  
Less: Interest 1,134  
Present value of lease liabilities $ 6,595 $ 7,000