Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 54,455	$ 49,241
Short-term deposits	57,353	57,103
Trade receivables (net of allowance for doubtful accounts of $274 and $156 at March 31, 2016 and December 31, 2015, respectively)	24,400	47,436
Prepaid expenses and other current assets	4,619	2,622
Total current assets	140,827	156,402
Long-term assets:
Other assets	494	477
Property and equipment, net	8,490	8,265
Total long-term assets	8,984	8,742
Total assets	149,811	165,144
Current liabilities:
Trade payables	702	2,612
Accrued expenses and other liabilities	18,118	23,029
Deferred revenues	43,201	45,675
Total current liabilities	62,021	71,316
Long-term liabilities:
Deferred revenues	2,868	3,096
Severance pay	1,524	1,528
Other liabilities	5,552	5,617
Total long-term liabilities	9,944	10,241
Stockholders’ equity:
Common stock of $ 0.001 par value - Authorized: 200,000,000 shares at March 31, 2016 and December 31, 2015; Issued and outstanding: 26,202,892 shares at March 31, 2016 and 26,069,154 shares at December 31, 2015	26	26
Accumulated other comprehensive income (loss)	893	(331)
Additional paid-in capital	175,711	172,326
Accumulated deficit	(98,784)	(88,434)
Total stockholders’ equity	77,846	83,587
Total liabilities and stockholders’ equity	$ 149,811	$ 165,144