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Income Taxes (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Mar. 31, 2019
Mar. 31, 2013
Mar. 31, 2020
Mar. 31, 2019
Income Tax Expense (Benefit) [Abstract]        
Income tax expense (benefit)     $ 1 $ (30)
Paid federal income taxes attributable to alternative minimum tax rate   $ 501    
Alternative Minimum Tax (AMT) Credit Carryforward [Member]        
Income Tax Expense (Benefit) [Abstract]        
Income tax refund received $ 30