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Stock-Based Compensation (Details 3)
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Number of outstanding options | shares 2,629,176
Exercise Price Range One  
Exercise price range, lower range limit $ 1.29
Exercise price range, upper range limit $ 16.67
Number of outstanding options | shares 2,029,176
Weighted-average remaining contractual life 8 years 7 months 10 days
Weighted-average exercise price $ 1.86
Exercise Price Range Two  
Exercise price range, lower range limit .56
Exercise price range, upper range limit $ 16.67
Number of outstanding options | shares 600,000
Weighted-average remaining contractual life 9 years 4 months 13 days
Weighted-average exercise price $ 1.33