CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (16,319)	$ (18,246)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	150	66
Stock-based compensation expense	1,348	815
Change in fair value of preferred stock warrant liability		(58)
Amortization and interest accretion related to operating leases	37
Changes in operating assets and liabilities:
Other receivables		21
Prepaids and other current and non-current assets	1,267	282
Accounts payable	(120)	(1,604)
Accrued expenses and other non-current liabilities	166	6,452
Operating lease liabilities, current and non-current	(1,951)
Net cash used in operating activities	(15,422)	(12,272)
Cash flows from investing activities:
Purchases of property and equipment	(1,181)	(1,614)
Net cash used in investing activities	(1,181)	(1,614)
Cash flows from financing activities:
Payment of deferred offering costs		(18)
Proceeds from employee equity plans	130
Net cash used in financing activities	130	(18)
Effect of exchange rate changes on cash	124	(137)
Net decrease in cash, cash equivalents and restricted cash	(16,349)	(14,041)
Cash, cash equivalents and restricted cash at beginning of period	183,225	134,368
Cash, cash equivalents and restricted cash at end of period	166,876	120,327
Components of cash, cash equivalents and restricted cash
Cash and cash equivalents	165,403	118,854
Restricted Cash	1,473	1,473
Supplemental noncash investing and financing activities
Property and equipment included in accounts payable and accrued expenses	$ 974	399
Deferred offering costs in accounts payable and accrued expenses		$ 766