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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 28,859 $ 13,683
Short-term investments 88,718 47,013
Accounts receivable 8,752 12,415
Inventories 13,539 14,457
Prepaid and other current assets 7,034 2,330
Total current assets 146,902 89,898
Non-current assets:    
Property and equipment, net 8,130 2,119
Goodwill 1,316 1,316
Intangible assets, net 334 536
Restricted cash 2,728 247
Other assets 4,050 4,128
Total assets 163,460 98,244
Current liabilities:    
Accounts payable 18,595 10,974
Accrued liabilities 19,800 11,712
Debt - current 7,857  
Manufacturing and development obligations – current 5,928  
Deferred product revenue - current 498 445
Total current liabilities 52,678 23,131
Non-current liabilities:    
Debt - non-current 22,013 29,798
Manufacturing and development obligations - non-current   5,766
Other non-current liabilities 4,250 609
Total liabilities 78,941 59,304
Commitments and contingencies
Stockholders' equity:    
Preferred stock, $0.001 par value; 5,000 shares authorized, issuable in series; zero shares issued and outstanding at December 31, 2018 and 2017, respectively
Common stock, $0.001 par value; 225,000 shares authorized; 136,853 and 115,555 shares issued and outstanding at December 31, 2018 and 2017, respectively 136 115
Additional paid-in capital 863,531 760,225
Accumulated other comprehensive loss (281) (97)
Accumulated deficit (778,867) (721,303)
Total stockholders' equity 84,519 38,940
Total liabilities and stockholders' equity $ 163,460 $ 98,244