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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, 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 loss, net |  |  |  |  | 768 |  | 768
Net income |  |  |  |  |  | 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 |  | [1] | 294 |  |  |  | $ 294
Exercise of options and RSU's, shares | 276,263 |  |  |  |  |  |
Share-based compensation expense |  |  | 1,203 |  |  |  | 1,203
Other comprehensive loss, net |  |  |  |  | 677 |  | 677
Net income |  |  |  |  |  | 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
Exercise of options and RSU's |  | [1] | 2,611 |  |  |  | $ 2,611
Exercise of options and RSU's, shares | 2,044,466 |  |  |  |  |  | 1,930,244
Share-based compensation expense |  |  | 1,980 |  |  |  | $ 1,980
Other comprehensive loss, net |  |  |  |  | (2,037) |  | (2,037)
Cumulative effect of the new revenue recognition standard |  |  |  |  |  | 70 | 70
Net income |  |  |  |  |  | 23,046 | 23,046
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 |  |  |  |  |  | 80,089,658
[1] | Represent an amount lower than $1.

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