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Income Taxes (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Taxes (Textual) [Abstract]      
Federal statutory income tax rate 21.00% 21.00% 35.00%
Valuation allowance for deferred tax assets $ 0 $ 0  
Unrecognized tax benefits 0 0  
Impact of enactment of federal tax reform $ 0 $ 0 $ 1,793
Earliest Tax Year      
Income Taxes (Textual) [Abstract]      
Open tax year 2016    
Latest Tax Year      
Income Taxes (Textual) [Abstract]      
Open tax year 2018