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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 32,073 $ 39,884
Marketable securities available-for-sale 132,963 111,171
Accounts and other receivables, net 22,661 8,886
Inventories, net 63,689 41,332
Prepaid manufacturing 29,423  
Prepaid expenses and other current assets 9,206 7,380
Total current assets 290,015 208,653
Property and equipment, net 30,567 32,022
Intangible assets, net   2,500
Operating lease right-of-use assets 26,583 30,252
Goodwill 2,297 2,081
Restricted cash 237 216
Other assets 3,573 3,344
Total assets 353,272 279,068
Current liabilities:    
Accounts payable 3,312 9,278
Accrued research and development 2,805 4,120
Accrued liabilities 19,099 14,802
Warrant liability 10,736 14,860
Deferred revenue 38,212  
Other current liabilities 3,247 9,987
Total current liabilities 77,411 53,047
Long-term debt, net of debt discount of $1,094 and $1,394 at December 31, 2020 and 2019, respectively 179,811 178,601
Long-term portion of lease liabilities 34,789 37,845
Other long-term liabilities 2,568 1,285
Total liabilities 294,579 270,778
Commitments and contingencies (Note 9)
Stockholders’ equity:    
Preferred stock value
Common stock: $0.001 par value; 278,000 shares and 139,000 shares authorized at December 31, 2020 and 2019, respectively; 110,190 shares and 83,871 shares issued and outstanding at December 31, 2020 and 2019, respectively 110 84
Additional paid-in capital 1,352,374 1,229,417
Accumulated other comprehensive gain (loss) 273 (2,387)
Accumulated deficit (1,294,064) (1,218,824)
Total stockholders’ equity 58,693 8,290
Total liabilities and stockholders’ equity 353,272 279,068
Series B Convertible Preferred Stock    
Stockholders’ equity:    
Preferred stock value