Business Description and Summary of Significant Accounting Policies - Schedule of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Warrant derivative liability	$ 25	$ 10
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Warrant derivative liability
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Warrant derivative liability
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Warrant derivative liability	$ 25	$ 10