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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Ordinary shares [Member]
Additional paid-in capital [Member]
Treasury share [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Total
Balance at Dec. 31, 2018 $ 853 $ 271,765 $ (3,998) $ (767) $ (131,950) $ 135,903
Balance, shares at Dec. 31, 2018 33,896,261          
Exercise of share options and restricted share units $ 18 974 0 0 0 992
Exercise of share options and restricted share units, shares 624,467          
Share-based compensation $ 0 3,373 0 0 0 3,373
Other comprehensive income (loss) 0 0 0 242 0 242
Net loss 0 0 0 0 (8,659) (8,659)
Balance at Dec. 31, 2019 $ 871 276,112 (3,998) (525) (140,609) 131,851
Balance, shares at Dec. 31, 2019 34,520,728          
Exercise of share options and restricted share units $ 25 1,810 0 0 0 1,835
Exercise of share options and restricted share units, shares 861,910          
Share-based compensation $ 0 5,143 0 0 0 5,143
Other comprehensive income (loss) 0 0 0 671 0 671
Net loss 0 0 0 0 (9,348) (9,348)
Balance at Dec. 31, 2020 $ 896 283,065 (3,998) 146 (149,957) $ 130,152
Balance, shares at Dec. 31, 2020 35,382,638         35,382,638
Exercise of share options and restricted share units $ 33 2,778 0 0 0 $ 2,811
Exercise of share options and restricted share units, shares 1,108,842          
Share-based compensation $ 0 7,960 0 0 0 7,960
Other comprehensive income (loss) 0 0 0 125 0 125
Net loss 0 0 0 0 (15,040) (15,040)
Balance at Dec. 31, 2021 $ 929 $ 293,803 $ (3,998) $ 271 $ (164,997) $ 126,008
Balance, shares at Dec. 31, 2021 36,491,480         36,491,480