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ShareBased Compensation (Details 1) - Service Period Based Stock Options [Member]
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2020
USD ($)
$ / shares
shares
Number of shares  
Number of shares, Outstanding, Beginning balance | shares 9,509
Number of shares, Outstanding, granted | shares 2,601,000
Number of shares, Outstanding, Expired | shares (259,000)
Number of shares, Options Exercised | shares (758,000)
Number of shares, Outstanding, Forfeited | shares (708,000)
Number of shares, ending balance Exercised | shares 6,495,000
Number of shares, ending balance | shares 10,385,000
Weighted average exercise price  
Weighted average exercise price, outstanding begining balance $ 3.86
Weighted average exercise price, granted 3.87
Weighted average exercise price, exercised 3.67
Weighted average exercise price, expired 4.66
Weighted average exercise price, options forfeited 3.49
Weighted average exercise price, outstanding ending balance 3.88
Weighted average exercise price, exercisable ending balance $ 3.81
Weighted average contractual term  
Weighted average remaining contractual term, beginning balance 6 years 10 months 24 days
Weighted average remaining contractual term, ending balance 7 years
Weighted average remaining contractual term, Exercisable balance 5 years 8 months 12 days
Weighted average remaining contractual term, granted 10 years
Grant date fair value  
fair value granted $ 2.27
Weighted average intrinsic value  
Weighted average intrinsic value, exercised | $ $ 1,024
Weighted average intrinsic value, ending balance | $ 4,508
Weighted average intrinsic value, exercised, ending balance | $ $ 3,314