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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 105,138 $ 71,898
Short-term investments 103,353 319,074
Accounts receivable, net 41,850 39,879
Inventory 41,905 24,968
Prepaid expenses and other current assets 21,950 23,245
Total current assets 314,196 479,064
Property and equipment, net 22,737 19,618
Right-of-use lease assets 16,277 13,754
Other assets 346 346
Total assets 353,556 512,782
Current liabilities:    
Accounts payable 525 2,758
Accrued clinical and manufacturing liabilities 49,962 34,614
Accrued payroll and employee liabilities 13,597 15,248
Other accrued liabilities 28,369 36,535
Current lease liabilities 2,997 1,926
Convertible notes payable to related parties, net of discount 7,053 5,624
Total current liabilities 102,503 96,705
Non-current lease liabilities 14,561 12,242
Total liabilities 117,064 108,947
Commitments and contingencies (see Note 6)
Stockholders’ equity:    
Preferred stock, $0.01 par value: 2,500 shares authorized; no shares issued or outstanding at December 31, 2020 and 2019
Common stock, $0.01 par value: 150,000 shares authorized; 91,310 and 90,304 shares issued and outstanding at December 31, 2020 and 2019, respectively 913 903
Additional paid-in capital 1,628,070 1,568,317
Accumulated other comprehensive income 257 85
Accumulated deficit (1,392,748) (1,165,470)
Total stockholders’ equity 236,492 403,835
Total liabilities and stockholders’ equity $ 353,556 $ 512,782