CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (32,397,000)	$ (20,957,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,385,000	1,095,000
Stock-based compensation	8,750,000	5,256,000
Change in right-of-use asset	644,000	520,000
Interest expense on notes and convertible debt	0	36,000
Amortization of debt issuance costs and debt discount	0	250,000
Change in fair value of warrant liabilities	(1,745,000)	4,152,000
Inventory write down	203,000	0
Gain from disposal of property and equipment	(100,000)	0
Changes in operating assets and liabilities:
Accounts receivable	842,000	(140,000)
Inventory	(4,373,000)	(476,000)
Prepaid expenses and other assets	2,480,000	(1,202,000)
Accounts payable	4,807,000	(1,000)
Accrued and other liabilities	(2,551,000)	(254,000)
Operating lease liability	(772,000)	(678,000)
Net cash used in operating activities	(21,827,000)	(12,399,000)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of property and equipment	275,000	0
Purchases of property and equipment	(416,000)	(597,000)
Net cash used in investing activities	(141,000)	(597,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the merger and private offering	0	291,454,000
Payment of offering costs	0	(26,116,000)
Repayment of debt	0	(7,000,000)
Proceeds from issuance of promissory notes to related parties	0	5,000,000
Repayment of promissory notes to related parties	0	(5,000,000)
Repurchase of common stock	(31,000)	(43,000)
Proceeds from exercise of stock options	209,000	504,000
Taxes paid related to net share settlement of equity awards	(59,000)	0
Net cash provided by financing activities	119,000	258,799,000
Effect of exchange rates on cash and cash equivalents	(12,000)	0
Net increase (decrease) in cash, cash equivalents and restricted cash	(21,861,000)	245,803,000
Cash, cash equivalents and restricted cash at beginning of period	184,656,000	12,642,000
Cash, cash equivalents and restricted cash at end of period	162,795,000	258,445,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	0	635,000
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Property and equipment purchases included in accounts payable and accrued liabilities	377,000	100,000
Private placement warrants acquired as part of the merger	0	19,377,000
Issuance of redeemable convertible preferred stock upon exercise of warrants	0	58,097,000
Conversion of redeemable convertible preferred stock to common stock	0	97,322,000
Offering costs not yet paid	$ 0	$ 504,000