CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 14,232	$ 40,426
Marketable securities	122,886	100,914
Accounts receivable, net	21,024	20,268
Inventory	742	779
Prepaid expenses and other current assets	15,725	11,788
Total current assets	174,609	174,175
Property and equipment, net	5,709	5,015
Intangible assets, net	26,933	27,819
Non-current inventory and other	3,420	3,365
Total assets	210,671	210,374
Current liabilities:
Accounts payable and accrued liabilities	19,126	16,196
Accrued government and other rebates	31,310	34,124
Milestone obligation under license agreement	25,000
Total current liabilities	75,436	50,320
Milestone obligation under license agreement		25,000
Other non-current liabilities	3,817	3,724
Total liabilities	79,253	79,044
Commitments and contingencies (Notes 11 and 13)
Stockholders' equity:
Preferred stock, $0.001 par value; 20,000,000 shares authorized, and no shares issued or outstanding
Common stock, $0.001 par value; 150,000,000 shares authorized; 44,845,853 and 44,000,614 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	45	44
Additional paid-in capital	486,400	477,087
Accumulated other comprehensive income	11	58
Accumulated deficit	(355,038)	(345,859)
Total stockholders' equity	131,418	131,330
Total liabilities and stockholders' equity	$ 210,671	$ 210,374

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
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.