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Balance Sheet Details (Tables)
 3 Months Ended
Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Other Current Assets and Prepaid Expenses Other Current Assets and Prepaid Expense consist of (in thousands):
March 31, 2023December 31, 2022
Prepaid clinical and related costs$3,902 $5,608 
VAT receivable843 296 
Australian research and development tax incentive2,823 2,361 
Other1,902 1,225 
Total$9,470 $9,490 
Schedule of Accounts Payable and Accrued Expenses Accounts Payable consist of (in thousands):
March 31, 2023December 31, 2022
Clinical costs$4,919 $3,749 
Legal and audit costs54 288 
Other268 244 
Total$5,241 $4,281 
Accrued expenses consist of (in thousands):
March 31, 2023December 31, 2022
Accrued clinical and related costs$9,628 $6,807 
Accrued legal and audit costs137 169 
Accrued compensation336 890 
Accrued other82 120 
Total$10,183 $7,986 
Schedule of Other Current Liabilities Other Current Liabilities consist of (in thousands):
March 31, 2023December 31, 2022
Lease liabilities$649 $571 
Other229 239 
Total$878 $810