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Leases (Schedule of Future Minimum Base Rental Payment) (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Leases [Abstract]    
2020 $ 606,000  
2021 1,403,000  
2022 755,000  
2023 543,000  
2024 56,000  
Remaining balance of lease payments 3,363,000  
Difference between undiscounted cash flows and discounted cash flows 182,000  
Lease liabilities $ 3,181,000 $ 4,409,000