Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 26,294	$ 36,396
Marketable securities	31,408	37,940
Accounts receivable, net	23,603	17,270
Inventories, net	14,742	13,441
Prepaid expenses and other current assets	6,504	3,845
Total current assets	102,551	108,892
Long term marketable securities	43,967	19,816
Property and equipment, net	3,210	2,448
Intangible assets, net	16,627	5,434
Other non-current assets	415	918
Total assets	166,770	137,508
Current liabilities:
Accounts payable	2,812	1,863
Accrued sales deductions	18,820	8,461
Accrued expenses	21,353	17,026
Deferred licensing revenue	143	143
Total current liabilities	43,128	27,493
Deferred licensing revenue, net of current portion	1,167	1,274
Convertible notes, net of discount	8,068	26,947
Other non-current liabilities	3,815	3,876
Derivative liabilities	1,156	6,564
Total liabilities	57,334	66,154
Stockholders' equity:
Common stock, $0.001 par value, 130,000,000 shares authorized at September 30, 2015 and December 31, 2014; 48,686,657 and 42,974,463 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively	49	43
Additional paid-in capital	261,006	230,122
Accumulated other comprehensive loss	(107)	(154)
Accumulated deficit	(151,512)	(158,657)
Total stockholders' equity	109,436	71,354
Total liabilities and stockholders' equity	$ 166,770	$ 137,508