CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 45,577	$ 92,494
Accounts receivable, net	19,103	1,102
Investment securities, available-for-sale	24,990	11,499
Restricted cash and investments	0	90,005
Inventory	16,105	23,193
Prepaid expenses and other current assets	6,510	6,168
Total current assets	112,285	224,461
Property and equipment, net	702	1,044
Intangible assets	70,108	76,061
Other long-term assets	464	2,835
Restricted cash	188	188
Total assets	183,747	304,589
Current liabilities:
Accounts payable	10,933	15,210
Accrued expenses	44,061	30,412
Contingent consideration		15,000
Deferred revenue, current portion	1,238	4,738
Total current liabilities	56,232	65,360
Long-term contingent consideration	8,400	6,800
Long-term convertible debt	25,367	64,279
Long-term convertible debt, at fair value	146,234	101,900
Deferred revenue, less current portion	6,538	5,863
Commitments and contingencies
Stockholders' equity:
Preferred stock, value
Common stock, $0.001 par value, 300,000,000 shares authorized at September 30, 2017 and December 31, 2016; 15,601,157 and 14,616,751 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively	16	15
Additional paid-in capital	710,607	698,229
Accumulated other comprehensive income (loss)	(7,345)	4,011
Accumulated deficit	(765,645)	(645,211)
Total stockholders’ equity (deficit)	(62,367)	57,044
Total liabilities and stockholders’ equity	183,747	304,589
Series Z Preferred Stock
Stockholders' equity:
Preferred stock, value	$ 3,343	$ 3,343

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.