Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 30,513	$ 38,570
Accounts receivable, net	8,597	10,469
Prepaid expenses and other current assets	4,618	4,989
Total current assets	43,728	54,028
Property and equipment, net	12,559	14,568
Intangible assets, net	18,307	21,332
Goodwill	10,358	10,358
Other assets	1,048	1,173
Total assets	86,000	101,459
Current liabilities
Accounts payable	1,833	1,973
Accrued expenses and other current liabilities	11,335	15,169
Deferred revenue	2,378	2,933
Total current liabilities	15,546	20,075
Deferred tax liability		551
Other liabilities	1,698	1,713
Stockholders’ equity
Common stock, $0.0001 par value. Authorized 100,000 shares; 21,089 issued and 20,287 shares outstanding at March 31, 2016 and 20,956 issued and 20,154 shares outstanding at December 31, 2015	2	2
Additional paid-in capital	507,147	505,603
Accumulated other comprehensive loss	(90)	(91)
Treasury stock at cost, 802 at March 31, 2016 and December 31, 2015	(30,767)	(30,767)
Accumulated deficit	(407,536)	(395,627)
Total stockholders’ equity	68,756	79,120
Total liabilities and stockholders’ equity	$ 86,000	$ 101,459