Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 38,570	$ 47,820
Accounts receivable, net	10,469	14,504
Prepaid expenses and other current assets	4,989	7,447
Total current assets	54,028	69,771
Property and equipment, net	14,568	22,836
Intangible assets, net	21,332	40,535
Goodwill	10,358	10,358
Other assets	1,173	6,055
Total assets	101,459	149,555
Current liabilities
Accounts payable	1,973	4,762
Accrued expenses and other current liabilities	15,169	24,225
Deferred revenue	2,933	3,569
Total current liabilities	20,075	32,556
Deferred tax liability	551	334
Other liabilities	$ 1,713	$ 1,823
Commitments and contingencies (Note 8)
Stockholders’ equity
Common stock, $0.0001 par value. Authorized 100,000 shares; 20,956 issued and 20,154 shares outstanding at December 31, 2015 and 20,543 issued and 19,741 shares outstanding at December 31, 2014	$ 2	$ 2
Additional paid-in capital	505,603	497,809
Accumulated other comprehensive loss	(91)	(76)
Treasury stock at cost, 802 at December 31, 2015 and December 31, 2014 respectively	(30,767)	(30,767)
Accumulated deficit	(395,627)	(352,126)
Total stockholders’ equity	79,120	114,842
Total liabilities and stockholders’ equity	$ 101,459	$ 149,555