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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues:      
Products $ 214,291 $ 128,970 $ 157,531
Services 65,260 68,573 77,602
Total revenues 279,551 197,543 235,133
Cost of revenues:      
Products 162,563 94,683 106,905
Services 41,498 48,635 44,593
Impairment of long-lived assets 10,137
Total cost of revenues 204,061 153,455 151,498
Gross profit 75,490 44,088 83,635
Operating expenses:      
Research and development, net 24,853 22,412 25,158
Selling and marketing 23,411 24,823 32,537
General and administrative 26,471 18,644 20,903
Restructuring costs 1,508
Goodwill impairment 20,402
Total operating expenses 74,735 87,789 78,598
Operating income (loss) 755 (43,701) 5,037
Financial expenses, net (4,843) (7,243) (3,837)
Income (loss) before taxes on income (4,088) (50,944) 1,200
Taxes on income 1,252 1,190 1,901
Loss from continuing operations (5,340) (52,134) (701)
Loss from discontinued operations (200) (795)
Loss $ (5,340) $ (52,334) $ (1,496)
Loss per share (basic and diluted):      
Continuing operations $ (0.10) $ (1.16) $ (0.02)
Discontinued operations 0.00 (0.02)
Total loss per share $ (0.10) $ (1.16) $ (0.04)
Weighted average number of shares used in computing loss per share:      
Basic and diluted 51,970,458 45,026,069 43,777,223