Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 34,152	$ 36,396
Marketable securities	28,038	37,940
Accounts receivable, net	25,908	17,270
Inventories, net	12,587	13,441
Prepaid expenses and other current assets	5,292	3,845
Total current assets	105,977	108,892
Long term marketable securities	55,009	19,816
Property and equipment, net	3,874	2,448
Deferred legal fees	22,503	5,209
Intangible assets, net	976	225
Other non-current assets	391	918
Total assets	188,730	137,508
Current liabilities:
Accounts payable	4,314	1,863
Accrued sales deductions	26,794	8,461
Accrued expenses	24,813	17,026
Deferred licensing revenue	176	143
Total current liabilities	56,097	27,493
Deferred licensing revenue, net of current portion	1,390	1,274
Convertible notes, net of discount	7,189	26,947
Other non-current liabilities	4,325	3,876
Derivative liabilities	854	6,564
Total liabilities	69,855	66,154
Stockholders' equity:
Common stock, $0.001 par value, 130,000,000 shares authorized December 31, 2015 and 2014; 49,004,674 and 42,974,463 shares issued and outstanding at December 31, 2015 and 2014, respectively	49	43
Additional paid-in capital	263,955	230,122
Accumulated other comprehensive loss	(488)	(154)
Accumulated deficit	(144,641)	(158,657)
Total stockholders' equity	118,875	71,354
Total liabilities and stockholders' equity	$ 188,730	$ 137,508