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Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Assets    
Cash and cash equivalents $ 70,059 $ 112,346
Short-term investments 5,832 0
Accounts and other receivables 6,583 1,528
Prepaid expenses and other current assets 2,659 1,182
Total current assets 85,133 115,056
Inventories 596 0
Property and equipment, net 852 884
Operating lease right-of-use assets 1,068 1,141
Long-term investments 31,463 15,422
Other long-term assets 439 438
Total assets 119,551 132,941
Liabilities and stockholders' equity    
Accounts payable and accrued expenses 4,279 3,038
Current portion of operating lease liabilities 474 356
Current portion of discount and rebate liabilities 2,825 0
Other current liabilities 853 836
Total current liabilities 8,431 4,230
Line of credit payable 12,800 0
Derivative and warrant liability 35 330
Operating lease liabilities, less current portion 956 1,232
Discount and rebate liabilities, less current portion 3,509 0
Other long-term liabilities 26 31
Total liabilities 25,757 5,823
Commitments and contingencies (Note D)
Stockholders’ equity:    
Common stock, $0.0001 par value, 250,000,000 shares authorized, 35,411,097 shares issued and 34,501,144 shares outstanding as of September 30, 2022; 35,325,801 shares issued and 35,005,640 shares outstanding as of December 31, 2021 3 4
Additional paid-in capital 400,677 396,957
Treasury stock, at cost (7,536) (2,814)
Accumulated deficit (299,551) (267,029)
Accumulated other comprehensive income 201 0
Total stockholders' equity 93,794 127,118
Total liabilities and stockholders' equity 119,551 132,941
Undesignated Preferred Stock [Member]    
Stockholders’ equity:    
Undesignated preferred stock, $0.0001 par value, 10,000,000 shares authorized, no shares issued or outstanding as of September 30, 2022 or December 31, 2021 $ 0 $ 0