Fair Value of Financial Assets and Liabilities (Details 2) - Number	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Risk Free Interest Rate [Member]
Measurement input	0.0248	0.0198
Expected Volatility [Member]
Measurement input	0.7500	0.7500
Expected Term [Member]
Contractual life (in years)	2 months 1 day	1 year 6 months