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Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2018
Income Taxes          
Deferred Tax Liabilities, Gross         $ 475,000
Income tax (expense) benefit $ (306,000) $ (184,000) $ (826,000) $ (210,000)