Stockholders' Deficit (Details) - Schedule of allocation of stock-based compensation expense - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Deficit (Details) - Schedule of allocation of stock-based compensation expense [Line Items]
Stock-based compensation expense	$ 63	$ 103
Director Options and Consultants Member]
Stockholders' Deficit (Details) - Schedule of allocation of stock-based compensation expense [Line Items]
Stock-based compensation expense	18	23
Research and Development [Member]
Stockholders' Deficit (Details) - Schedule of allocation of stock-based compensation expense [Line Items]
Stock-based compensation expense		7
General and Administrative [Member]
Stockholders' Deficit (Details) - Schedule of allocation of stock-based compensation expense [Line Items]
Stock-based compensation expense	$ 44	$ 73