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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Revenues:      
Products $ 133,554 $ 155,691 $ 174,313
Services 101,312 115,875 71,018
Total revenues 234,866 271,566 245,331
Cost of revenues:      
Products 86,304 96,805 93,989
Services 68,906 76,832 48,409
Total cost of revenues 155,210 173,637 142,398
Gross profit 79,656 97,929 102,933
Operating expenses:      
Research and development, net 27,900 29,241 31,701
Selling and marketing 32,214 34,988 35,370
General and administrative 23,071 23,618 24,738
Restructuring costs 564 315 398
Impairment of goodwill and intangible assets    31,879 17,846
Total operating expenses 83,749 120,041 110,053
Operating loss (4,093) (22,112) (7,120)
Financial expenses, net (6,239) (3,432) (3,235)
Other income    2,729 8,074
Loss before taxes on income (10,332) (22,815) (2,281)
Tax benefit (755) (1,893) (430)
Net loss from continuing operations (9,577) (20,922) (1,851)
Net loss from discontinued operations (8,320) (2,270) (3,999)
Net loss $ (17,897) $ (23,192) $ (5,850)
Net loss per share (basic and diluted):      
Continuing operations $ (0.23) $ (0.51) $ (0.04)
Discontinued operations $ (0.20) $ (0.05) $ (0.10)
Total loss per share $ (0.43) $ (0.56) $ (0.14)
Weighted average number of shares used in computing net loss per share:      
Basic 41,960,925 41,410,409 40,929,056
Diluted 41,960,925 41,410,409 40,929,056