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Significant Accounting Policies, Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Tax Penalties and Interest Expense [Abstract]        
Interest $ 0 $ 0 $ 0 $ 0
Penalties $ 0 $ 0 $ 0 $ 0