Investments and Fair Value of Financial Instruments (Details Narrative) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Measurement Input, Royalty Payment Rate [Member]
Discount rate	3.00%	3.00%
Discount Rate [Member]
Discount rate	21.00%	21.00%
Discount Rate [Member] | Minimum [Member]
Increase (Decrease) in liability	$ 158
Discount Rate [Member] | Maximum [Member]
Increase (Decrease) in liability	$ 178