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Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 02, 2019
Dec. 31, 2018
Sep. 30, 2018
Dec. 31, 2017
Summary of Significant Accounting Policies (Textual)          
Cash equivalents, at carrying value     $ 0   $ 3
Allowance for doubtful trade receivables     1   $ 0
Future minimum lease payments     316    
Right to Use Asset - Long Term $ 29 $ 87  
Lease Liability - Long Term $ (29) $ (87)