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Operating Lease Obligations (Future Minimum Payments for Operating Leases) (Details)
Dec. 31, 2020
USD ($)
Operating Lease Liabilities, Payments Due [Abstract]  
2021 $ 120,000
2022 50,000
2023 46,000
2024 47,000
2025 47,000
2026 and beyond 159,000
Total Future Minimum Lease Payments 469,000
Amounts Representing Interest (81,000)
Present Value of Net Future Minimum Lease Payments (Lease Liability) $ 388,000