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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 38,344 $ 41,918
Accounts receivable 372 526
Refundable research income tax credits 4,604 4,072
Prepaid expenses and other current assets 6,573 5,175
Total current assets 49,893 51,691
Property and equipment, net 15,733 17,887
Operating lease right-of-use assets 15,061 16,869
Refundable research income tax credits, non-current 14,481 12,809
Other non-current assets 890 879
Restricted cash 1,500 1,500
Total assets 97,558 101,635
Current liabilities:    
Accounts payable 10,740 15,485
Accrued compensation and employee benefits 15,425 14,569
Other accrued liabilities 13,938 8,195
Deferred revenues 7,556 7,556
Total current liabilities 47,659 45,805
Deferred revenues, non-current 5,874 5,874
Long-term portion of lease liabilities 23,461 26,253
Other non-current liabilities 962 933
Total liabilities 77,956 78,865
Commitments and contingencies
Stockholders’ equity:    
Preferred stock 0 0
Common stock 2,728 2,128
Additional paid-in capital 1,573,233 1,532,489
Accumulated deficit (1,554,900) (1,504,317)
Accumulated other comprehensive loss (1,459) (7,530)
Total stockholders’ equity 19,602 22,770
Total liabilities and stockholders’ equity $ 97,558 $ 101,635