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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 168,438 $ 201,015
Prepaid expenses and other current assets 6,095 10,211
Total current assets 174,533 211,226
Operating lease right-of-use assets   122
Property and equipment, net 22,328 22,864
Intangible assets, net 387 622
Total assets 197,248 234,834
Current liabilities:    
Accounts payable and accrued expenses 10,338 4,017
Accrued development expense 7,044 2,280
Accrued compensation and benefits 220 170
Operating lease liabilities, current   104
Other current liabilities 293 492
Total current liabilities 17,895 7,063
Operating lease liabilities, non-current   35
Other non-current liabilities   197
Total liabilities 17,895 7,295
Commitments and contingencies (Notes 10, 11 and 12)
Stockholders' equity:    
Preferred stock, $0.001 par value; 10,000,000 shares authorized, none issued and outstanding
Common stock, $0.001 par value; 120,000,000 shares authorized; 41,919,527 and 41,735,557 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively 42 42
Additional paid-in capital 513,510 511,049
Accumulated deficit (334,199) (283,552)
Total stockholders' equity 179,353 227,539
Total liabilities and stockholders' equity $ 197,248 $ 234,834