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Condensed Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Current assets    
Cash and cash equivalents $ 7,489 $ 19,187
Short-term investments 95,686 96,397
Accounts receivable 9,061 7,091
Inventory 8,103 7,822
Prepaid expenses and other current assets 2,081 2,319
Total current assets 122,420 132,816
Property and equipment, net 860 603
Operating lease right-of-use asset 5,559 0
Restricted cash 122 122
Other assets 21 21
Total assets 128,982 133,562
Current liabilities    
Accounts payable 2,228 1,378
Accrued liabilities 6,961 7,923
Operating lease liability 2,868 0
Total current liabilities 12,057 9,301
Deferred rent, noncurrent 0 911
Long-term debt 50,115 49,847
Operating lease liability, net of current portion 3,987 0
Total liabilities 66,159 60,059
Commitments and contingencies (Note 5)
Stockholders’ equity    
Preferred stock, $0.001 par value, 10,000,000 shares authorized and no shares issued and outstanding as of March 31, 2022 and December 31, 2021 0 0
Common stock, $0.001 par value, 200,000,000 shares authorized as of March 31, 2022 and December 31, 2021; 24,477,180 and 24,452,999 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively 24 24
Additional paid-in capital 499,013 497,522
Accumulated other comprehensive loss (982) (272)
Accumulated deficit (435,232) (423,771)
Total stockholders’ equity 62,823 73,503
Total liabilities and stockholders’ equity $ 128,982 $ 133,562