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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Ordinary shares [Member]
Additional paid-in capital [Member]
Treasury Stock [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Total
Balance at Dec. 31, 2017 $ 851 $ 268,487 $ (3,998) $ 36 $ (122,247) $ 143,129
Balance, shares at Dec. 31, 2017 33,483,262          
Cumulative effect of new accounting standard (See Note 1)         712 712
Exercise of stock options and restricted stock units $ 2 416       $ 418
Exercise of stock options and restricted stock units, shares 412,999         100,737
Stock-based compensation   2,862       $ 2,862
Other comprehensive income (loss)       (803)   (803)
Net loss         (10,415) (10,415)
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 stock options and restricted stock units $ 18 974       $ 992
Exercise of stock options and restricted stock units, shares 624,467         223,295
Stock-based compensation   3,373       $ 3,373
Other comprehensive income (loss)       242   242
Net loss         (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         34,520,728
Exercise of stock options and restricted stock units $ 25 1,810       $ 1,835
Exercise of stock options and restricted stock units, shares 861,910         290,828
Stock-based compensation   5,143       $ 5,143
Other comprehensive income (loss)       671   671
Net loss         (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