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Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 21,655 $ 16,347
Short-term investments 53,168 88,920
Accounts receivable and unbilled receivable 288 771
Prepaid expenses and other current assets 2,301 5,246
Total current assets 77,412 111,284
Property and equipment, net 1,238 1,269
Operating lease right-of-use assets 1,708 2,251
Other assets 1,279 1,387
Total Assets 81,637 116,191
Current liabilities:    
Accounts payable 1,966 1,956
Accrued liabilities 7,783 5,177
Operating lease liabilities 691 675
Total current liabilities 10,440 7,808
Operating lease liabilities, net of current portion 1,458 2,040
Total liabilities 11,898 9,848
Commitments and contingencies
Stockholders’ equity    
Preferred stock, $0.001 par value, 20,000 shares authorized; Series A Convertible Preferred Stock liquidation preference $1,068 and $1,044 at December 31, 2023 and December 31, 2022, respectively; (Note 5) 0 0
Common stock, $0.0001 par value, 150,000 shares authorized; 44,677 shares issued and outstanding at December 31, 2023 and December 31, 2022 4 4
Additional paid-in capital 409,343 404,834
Accumulated other comprehensive loss (67) (395)
Accumulated deficit (339,541) (298,100)
Total stockholders’ equity 69,739 106,343
Total Liabilities and Stockholders’ Equity $ 81,637 $ 116,191