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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 38,712 $ 26,584
Marketable securities available-for-sale 141,509 165,270
Accounts and other receivables 1,507 854
Inventories, net 12,452 312
Intangible assets, net   1,306
Prepaid expenses and other current assets 4,604 3,697
Total current assets 198,784 198,023
Property and equipment, net 16,933 16,619
Intangible assets, net 14,041  
Goodwill 2,174 2,244
Restricted cash 622 629
Other assets 3,834 1,270
Total assets 236,388 218,785
Current liabilities:    
Accounts payable 4,089 4,539
Accrued research and development 6,003 4,359
Accrued liabilities 14,506 9,695
Other current liabilities 7,000  
Total current liabilities 31,598 18,593
Long-term debt, net 100,319  
Other long-term liabilities 7,458 643
Total liabilities 139,375 19,236
Commitments and contingencies (Note 6)
Stockholders’ equity:    
Preferred stock: $0.001 par value; 5,000 shares authorized at September 30, 2018 and December 31, 2017; no shares issued and outstanding at September 30, 2018 and December 31, 2017
Common stock: $0.001 par value; 139,000 shares authorized at September 30, 2018 and December 31, 2017; 62,691 and 61,533 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively 63 62
Additional paid-in capital 1,124,892 1,107,693
Accumulated other comprehensive loss (1,687) (881)
Accumulated deficit (1,026,255) (907,325)
Total stockholders’ equity 97,013 199,549
Total liabilities and stockholders’ equity $ 236,388 $ 218,785