CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net loss	$ (101,878)	$ (25,570)	$ (19,594)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,147	798	634
Loss on write down of fixed assets	52	0	0
Change in fair value of warrant liability	(1,954)	0	0
Stock-based compensation	22,237	3,806	2,153
Amortization of right-of-use assets	1,901	0	0
Amortization of premium on available-for-sale securities	1,498	0	0
Accounts receivable	(2,200)	228	(369)
Inventories	(844)	(865)	603
Other current assets	(7,285)	(3,513)	(560)
Other noncurrent assets	(795)	(5)	24
Accounts payable	2,667	1,360	171
Accrued liabilities	3,202	2,263	174
Accrued employee costs	1,474	256	234
Lease liability	(1,785)
Other current liabilities	458	5	209
Other noncurrent liabilities		6	(63)
Net cash used in operating activities	(82,105)	(21,231)	(16,384)
Cash flows from investing activities:
Purchase of property, plant, and equipment	(3,850)	(855)	(421)
Purchase of available-for-sale securities	(571,925)	0	0
Proceeds from sale of available-for-sale securities	20,123	0	0
Proceeds from maturities of available-for-sale securities	171,580	0	0
Purchase of intangible assets	(4,500)	0	0
Net cash used in investing activities	(388,572)	(855)	(421)
Cash flows from financing activities:
Proceeds from business combination and private offering	560,777	0	0
Transaction costs related to business combination and private offering	47,487	0	0
Payments of taxes withheld on net settled vesting of restricted stock units	1,338	0	0
Proceeds from the issuance of Series B Preferred Stock	0	0	36,024
Proceeds from exercise of stock options	911	73	35
Financing costs incurred	0	0	(72)
Net cash provided by financing activities	512,863	73	35,987
Net increase (decrease) in cash and cash equivalents	42,186	(22,013)	19,182
Beginning cash and cash equivalents	24,624	46,637	27,455
Ending cash and cash equivalents	66,810	24,624	46,637
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0	0
Cash paid for income taxes	0	0	0
Supplemental disclosure of noncash investing and financing activities:
Changes in purchases of property, plant and equipment recorded in accounts payable	796	2	48
Private placement of warrants acquired as part of merger	3,014	0	0
Right-of-use asset obtained in exchange for lease liability	10,515	0	0
Non-cash lease adoption	$ 1,671	$ 0	$ 0