CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 16,166	$ 24,117
Short-term bank deposits	37,444	41,947
Marketable securities (Note 2)	47,833	68,464
Trade receivables (net of allowance for doubtful accounts of $0 and $25)	8,347	5,629
Deferred tax assets (Note 13)	1,868	3,457
Prepaid expenses and other current assets (Note 5)	3,982	1,996
Total current assets	115,640	145,610
Long-term assets:
Long term bank deposits	28,424	17,066
Severance pay fund	7,011	7,215
Deferred tax assets (Note 13)	399	955
Property and equipment, net (Note 4)	2,605	1,616
Goodwill (Note 6)	46,612	36,498
Intangible assets, net (Note 6)	5,512
Investments in other companies	1,806	3,367
Total long-term assets	92,369	66,717
Total assets	208,009	212,327
Current liabilities:
Trade payables	864	1,085
Deferred revenues	1,681	623
Accrued expenses and other payables (Note 7)	3,518	2,955
Contingent consideration (Note 1)	3,603
Accrued payroll and related benefits	10,054	7,681
Income taxes payable, net	739	1,833
Total current liabilities	20,459	14,177
Long-term liabilities:
Accrued severance pay	7,096	7,255
Deferred tax liabilities	1,405
Total long-term liabilities	8,501	7,255
Stockholders' equity (Note 8):
Preferred stock: $0.001 par value: 5,000,000 shares authorized; none issued and outstanding
Common stock: $0.001 par value: 60,000,000 shares authorized; 23,595,160 shares issued at December 31, 2013 and 2014; 21,181,730 and 20,252,490 shares outstanding at December 31, 2013 and 2014, respectively	20	21
Additional paid in-capital	209,426	204,415
Treasury stock at cost (2,413,430 and 3,342,670 shares of common stock at December 31, 2013 and 2014, respectively)	(54,708)	(41,005)
Accumulated other comprehensive loss (Note 10)	(436)	(81)
Retained earnings	24,747	27,545
Total stockholders' equity	179,049	190,895
Total liabilities and stockholders' equity	$ 208,009	$ 212,327