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INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock [Member]
Additional paid-in Capital [Member]
Treasury shares at cost [Member]
Accumulated other comprehensive income (loss) [Member]
Accumulated deficit [Member]
Total
Balance at Dec. 31, 2018 $ 214 $ 415,408 $ (20,091) $ (9,208) $ (226,755) $ 159,568
Balance, shares at Dec. 31, 2018 80,089,658          
Exercise of options and vesting of RSUs $ 1 255       256
Exercise of options and vesting of RSUs, shares 140,475          
Share-based compensation expense   1,172       1,172
Other comprehensive income (loss), net       1,192   1,192
Net income (loss)         1,571 1,571
Balance at Jun. 30, 2019 $ 215 416,835 (20,091) (8,016) (225,184) 163,759
Balance, shares at Jun. 30, 2019 80,230,133          
Balance at Dec. 31, 2019 $ 215 418,062 (20,091) (8,666) (229,099) $ 160,421
Balance, shares at Dec. 31, 2019 80,662,805         80,662,805
Cumulative effect of adoption of ASU Topic 326         (700) $ (700)
Exercise of options and vesting of RSUs [1] 554       554
Exercise of options and vesting of RSUs, shares 476,761          
Share-based compensation expense   867       867
Other comprehensive income (loss), net       (1,456)   (1,456)
Net income (loss)         (12,357) (12,357)
Balance at Jun. 30, 2020 $ 215 $ 419,483 $ (20,091) $ (10,122) $ (242,156) $ 147,329
Balance, shares at Jun. 30, 2020 81,139,566         81,139,566
[1] Represent an amount lower than $1.