Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 56,102	$ 49,241
Short-term deposits	52,353	57,103
Trade receivables (net of allowance for doubtful accounts of $358 and $156 at June 30, 2016 and December 31, 2015, respectively)	33,493	47,436
Prepaid expenses and other current assets	2,623	2,622
Total current assets	144,571	156,402
Long-term assets:
Other assets	511	477
Property and equipment, net	8,646	8,265
Total long-term assets	9,157	8,742
Total assets	153,728	165,144
Current liabilities:
Trade payables	2,074	2,612
Accrued expenses and other liabilities	22,714	23,029
Deferred revenues	44,953	45,675
Total current liabilities	69,741	71,316
Long-term liabilities:
Deferred revenues	2,674	3,096
Severance pay	1,549	1,528
Other liabilities	5,393	5,617
Total long-term liabilities	9,616	10,241
Stockholders’ equity:
Common stock of $ 0.001 par value - Authorized: 200,000,000 shares at June 30, 2016 and December 31, 2015; Issued and outstanding: 26,373,417 shares at June 30, 2016 and 26,069,154 shares at December 31, 2015	26	26
Accumulated other comprehensive income (loss)	48	(331)
Additional paid-in capital	179,574	172,326
Accumulated deficit	(105,277)	(88,434)
Total stockholders’ equity	74,371	83,587
Total liabilities and stockholders’ equity	$ 153,728	$ 165,144