Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (114,646)	$ (58,160)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	5,507	2,301
Stock-based compensation expense	7,844	4,161
Impairment of goodwill	18,057	0
Impairment of long lived assets	6,926	0
Gain on extinguishment of PPP Loan	0	(1,808)
Non-cash interest expense	167	0
Loss (gain) on sale of property and equipment	7	(28)
Other non-cash operating lease cost	2,851	913
Changes in operating assets and liabilities:
Accounts receivable	350	540
Due from related party	0	61
Prepaid expenses and other current assets	(2,529)	(3,217)
Other non-current assets	656	(4,689)
Accounts payable	(2,259)	2,261
Accrued expenses and other current liabilities	237	5,435
Other non-current liabilities	50	0
Due to related party	0	(266)
Deferred revenue	0	(13,631)
Operating lease liabilities	1,931	(1,006)
Net cash used in operating activities	(74,851)	(67,133)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(2,182)	(15,983)
Proceeds from sale of property and equipment	0	62
Net cash used in investing activities	(2,182)	(15,921)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from initial public offering, net of underwriting discounts, commissions and offering costs	0	118,576
Proceeds from underwriters' exercise of overallotment option, net of underwriting discounts and commissions and initial public offering costs	0	3,049
Principal payments on finance lease obligation	(22)	(27)
Proceeds from exercise of stock options and issuance of common stock under employee stock purchase plan	289	171
Proceeds from borrowings under loan agreement, net	14,738	0
Payment of deferred offering costs	(132)	(2,659)
Net cash provided by financing activities	14,873	119,110
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(62,160)	36,056
Cash, cash equivalents and restricted cash at beginning of year	135,965	99,909
Cash, cash equivalents and restricted cash at end of year	73,805	135,965
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	741	9
Cash paid in connection with operating lease liabilities	(268)	(1,434)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment in accounts payable and accrued liabilities	14	381
Conversion of redeemable convertible preferred stock into common stock	0	233,053
Operating right-of-use assets obtained in exchange for new operating leases upon adoption of ASC 842	0	5,965
Remeasurement of right-of-use asset	382	0
Right-of-use assets obtained in exchange for new operating lease liabilities	37,094	0
Prepaid rent reclassified to right-of-use assets	$ 7,736	$ 0