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Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 16,347 $ 11,943
Short-term investments 88,920 128,878
Accounts receivable and unbilled receivable 771 535
Prepaid expenses and other current assets 5,246 4,771
Total current assets 111,284 146,127
Property and equipment, net 1,269 382
Operating lease right-of-use assets 2,251 2,796
Other assets 1,387 239
Total Assets 116,191 149,544
Current liabilities:    
Accounts payable 1,956 1,439
Accrued liabilities 5,177 4,527
Operating lease liabilities 675 551
Other current liabilities 0 42
Total current liabilities 7,808 6,559
Operating lease liabilities, net of current portion 2,040 2,568
Total liabilities 9,848 9,127
Commitments and contingencies
Stockholders’ equity    
Preferred stock, $0.001 par value, 20,000 shares authorized; Series A Convertible Preferred Stock liquidation preference $1,044 and $1,020 at December 31, 2022 and December 31, 2021, respectively; (Note 5) 0 1
Common stock, $0.0001 par value, 150,000 shares authorized; 44,677 and 41,964 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively 4 4
Additional paid-in capital 404,834 400,503
Service receivable 0 (139)
Accumulated other comprehensive loss (395) (142)
Accumulated deficit (298,100) (259,810)
Total stockholders’ equity 106,343 140,417
Total Liabilities and Stockholders’ Equity $ 116,191 $ 149,544