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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 14,269 $ 10,759
Payroll tax credit, current portion 289 379
Prepaid expenses and other current assets 669 508
Total current assets 15,227 11,646
Property and equipment, net 418 443
Payroll tax credit, noncurrent portion 667 667
Other assets 442 487
Total assets 16,754 13,243
Current liabilities:    
Accounts payable 540 557
Other current liabilities 4,800 4,421
Total current liabilities 5,340 4,978
Noncurrent liabilities:    
Early exercised stock option liability 102 136
Other noncurrent liabilities 168 214
Total noncurrent liabilities 270 350
Total liabilities 5,610 5,328
Commitments and contingencies (Note [12])
Stockholders’ equity:    
Preferred stock, $0.0001 par value, 5,000,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued and outstanding at March 31, 2023 and December 31, 2022
Common stock, $0.0001 par value, 75,000,000 shares authorized at March 31, 2023 and December 31, 2022; 41,377,867 and 33,659,460 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively 4 3
Additional paid-in capital 113,333 103,009
Accumulated deficit (102,193) (95,097)
Total stockholders’ equity 11,144 7,915
Total liabilities and stockholders’ equity $ 16,754 $ 13,243