Unaudited Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Licenses	$ 10,158	$ 8,053
Maintenance and services	12,828	9,402
Total revenues	22,986	17,455
Cost of revenues	2,833	2,042
Gross profit	20,153	15,413
Operating costs and expenses:
Research and development	7,733	6,439
Sales and marketing	20,191	14,241
General and administrative	3,780	2,665
Total operating expenses	31,704	23,345
Operating loss	(11,551)	(7,932)
Financial expenses and other, net	(1,041)	(38)
Loss before income taxes	(12,592)	(7,970)
Income taxes	(78)	(104)
Net loss	$ (12,670)	$ (8,074)
Net loss per share of common stock, basic and diluted (in Dollars per share)	$ (0.51)	$ (0.73)
Weighted average number of shares used in computing net loss per share of common stock, basic and diluted (in Shares)	24,741,306	11,082,770