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Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Payables and Accruals [Abstract]    
Compensation and related benefits $ 217 $ 304
Accrued Litigation 269 269
Board Compensation 16
Stock service fees 23
Delaware Franchise Tax-Other 22
Total accrued expenses $ 531 $ 589