Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net loss	$ (8,719)	$ (1,631)	$ (1,916)	$ (27,320)	$ (3,547)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation				1,347	185
Change in fair value of redeemable convertible preferred stock tranche liability	0	0		11,718	0
Foreign currency gain from remeasurement				(166)	(110)
Changes in operating assets and liabilities:
Prepaid expenses and other assets				(3,810)	(1,824)
Long-term assets				(192)	(735)
Accounts payable				871	(381)
Accrued liabilities				2,411	381
Accounts payable and accrued liabilities, related party				(80)	(62)
Net cash used in operating activities				(15,221)	(6,093)
Cash flows from financing activities
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs				93,939
Proceeds from the exercise of stock options				111
Net cash provided by financing activities				94,050
Effect of exchange rate changes on cash				166	110
Net change in cash				78,995	(5,983)
Cash at beginning of period			21,223	20,487	21,223
Cash at end of period	$ 99,482	15,240		$ 99,482	15,240
Supplemental disclosure of cash flow information:
Redeemable convertible preferred stock accretion		$ (452)	$ (439)		$ 891