Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (86,841)	$ (109,523)
Adjustments to reconcile net loss to net cash used in operating activities:
Noncash stock compensation expense	19,364	1,146
Depreciation and amortization	100	154
Amortization of premium (discount) on investment securities	(487)	(17)
Amortization of debt issuance costs	1,100	922
Amortization of leasehold interest	106	106
Noncash change in lease liability and right of use asset	990	1,014
Change in fair value of notes payable	261	(276)
Changes in assets and liabilities:
Increase in inventory	(28,896)
(Increase) decrease in other current assets	(9,316)	8,054
(Increase) decrease in accounts receivable	(17,484)	1,301
Increase (decrease) in accounts payable and accrued expenses	19,136	(21,355)
Decrease in lease liabilities	(1,187)	(995)
Increase in other current liabilities	1,323	1,740
Decrease in deferred revenue	(76)	(76)
Net cash used in operating activities	(101,907)	(117,805)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from maturity of short-term securities	46,501	38,525
Investment in held-to-maturity securities	(22,168)	(71,810)
Purchases of PPE		(7)
Net cash provided by (used in) investing activities	24,333	(33,292)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment of loan payable		(975)
Proceeds from exercise of options	1,114	260
Issuance of common stock, net	46,296
Proceeds from debt financings	25,000
Financing costs paid	(125)
Net cash (used in) provided by financing activities	72,285	(715)
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(5,289)	(151,812)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	103,577	300,151
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	$ 98,288	$ 148,339