Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 49,137	$ 42,492
Accounts receivable, net	44,975	43,328
Inventories	9,201	11,342
Prepaid expenses and other assets	6,444	11,126
Total current assets	109,757	108,288
Property and equipment, net	8,923	8,764
Intangible assets	4,512	2,680
Other assets	485	500
Total assets	123,677	120,232
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	27,998	37,421
Accrued compensation	4,684	4,015
Accrued expenses	9,837	8,039
Deferred revenue	3,836	5,319
Total current liabilities	46,355	54,794
Other long-term liabilities	2,283	2,908
Total liabilities	$ 48,638	$ 57,702
Commitments and Contingencies (Note 8)
Stockholders' Equity:
Preferred stock, $0.001 par value, 10,000 shares authorized, no shares issued or outstanding at December 31, 2014 and June 30, 2015	$ 0	$ 0
Common stock, $0.001 par value, 100,000 and 200,000 shares authorized, 60,777 and 62,251 shares issued and outstanding at December 31, 2014 and June 30, 2015, respectively	62	61
Additional paid-in capital	342,082	336,827
Accumulated other comprehensive loss	(455)	(3,152)
Accumulated deficit	(266,650)	(271,206)
Total stockholders' equity	75,039	62,530
Total liabilities and stockholders' equity	$ 123,677	$ 120,232