ShareBased Compensation (Details 1) - Service Period Based Stock Options [Member] $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares
Number of shares, Outstanding, Beginning | shares	9,509
Number of shares, Options Granted | shares	2,133
Number of shares, Options Exercised | shares	(592)
Number of shares, Options Expired | shares	(239)
Number of shares, Outstanding, Ending | shares	(518)
Number of shares, Options Forfeited | shares	10,293
Number of shares, Exercisable | shares	6,126
Weighted Average Exercise price
Exercise price, Outstanding, Beginning	$ 3.86
Exercise price, Options Granted	3.62
Exercise price, Options Exercised	3.77
Exercise price, Options Expired	4.70
Exercise price, Options Forfeited	3.44
Exercise price, Outstanding, Ending	3.82
Exercise price, Exercisable	$ 3.76
Weighted Average Remaining Contatual Term (Years)
Weighted Average Remaining Contatual Term, Outstanding, Beginning	6 years 10 months 24 days
Weighted Average Remaining Contatual Term, Options Granted	10 years
Weighted Average Remaining Contatual Term, Outstanding, Ending	7 years 1 month 6 days
Weighted Average Remaining Contatual Term, Exercisable	5 years 8 months 12 days
Fair Value
Fair Value, Options Granted	$ 2.13
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Options Exercised | $	$ 719
Aggregate Intrinsic Value, Outstanding | $	9,322
Aggregate Intrinsic Value, , Exercisable | $	$ 6,252