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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 loss [Member]
Accumulated deficit [Member]
Total
Balance at Dec. 31, 2014 $ 212 $ 406,413 $ (20,091) $ (4,111) $ (277,871) $ 104,552
Balance, shares at Dec. 31, 2014 77,130,866          
Exercise of options and RSU's $ 2 136 138
Exercise of options and RSU's, shares 505,998          
Share-based compensation expense 1,625 1,625
Other comprehensive income, net (4,505) (4,505)
Net income (loss) 1,011 1,011
Balance at Dec. 31, 2015 $ 214 408,174 (20,091) (8,616) (276,860) 102,821
Balance, shares at Dec. 31, 2015 77,636,864          
Exercise of options and RSU's [1] 75 75
Exercise of options and RSU's, shares 132,065          
Share-based compensation expense 1,071 1,071
Other comprehensive income, net 768 768
Net income (loss) 11,429 11,429
Balance at Dec. 31, 2016 $ 214 409,320 (20,091) (7,848) (265,431) $ 116,164
Balance, shares at Dec. 31, 2016 77,768,929         77,768,929
Exercise of options and RSU's 294 $ 294
Exercise of options and RSU's, shares 276,263         237,410
Share-based compensation expense 1,203 $ 1,203
Other comprehensive income, net 677 677
Net income (loss) 15,560 15,560
Balance at Dec. 31, 2017 $ 214 $ 410,817 $ (20,091) $ (7,171) $ (249,871) $ 133,898
Balance, shares at Dec. 31, 2017 78,045,192         78,045,192
[1] Represent an amount lower than $1.