Fair Value of Financial Assets and Liabilities (Details 4)	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Risk Free Interest Rate [Member]
Measurement input	0.0224	0.0139
Expected volatility [Member]
Measurement input	0.7500	0.7500
Expected Term [Member]
Expected life (in years)	1 year	1 year