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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)
$ in Thousands
Ordinary shares
Additional paid-in capital
Accumulated deficit
Total
Balance at beginning of period at Dec. 31, 2017 $ 575 $ 177,434 $ (132,944) $ 45,065
Share-based compensation to employees and service providers     2,678 2,678
Issuance of ordinary shares 190 41,712   41,902
Exercise of options into ordinary shares 2 359   361
Comprehensive loss       (38,820)
Balance at end of period at Dec. 31, 2018 767 219,505 (169,086) 51,186
Share-based compensation to employees and service providers     3,027 3,027
Issuance of ordinary shares 195 47,893   48,088
Exercise of options into ordinary shares   5   5
Comprehensive loss     (42,304) (42,304)
Balance at end of period at Dec. 31, 2019 962 267,403 (208,363) 60,002
Share-based compensation to employees and service providers     4,202 4,202
Issuance of ordinary shares 84 23,783   23,867
Exercise of options into ordinary shares   52   52
Share-based compensation in consideration for intangible assets 8 1,906   1,914
Comprehensive loss     (76,173) (76,173)
Balance at end of period at Dec. 31, 2020 $ 1,054 $ 293,144 $ (280,334) $ 13,864