Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 12,672	$ (198,335)	$ (348,101)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Noncash stock compensation expense	37,933	19,185	61,274
Depreciation and amortization	211	303	282
Amortization of premium (discount) on investment securities	(2,236)	(331)	517
Amortization of debt issuance costs	2,378	1,844	1,080
Amortization of leasehold interest	212	212	212
Noncash change in lease liability and right of use asset	1,963	2,715	1,896
Change in fair value of notes payable	113	(116)	(578)
Changes in assets and liabilities:
Increase in inventory	(36,938)	0	0
Decrease (increase) in other current assets	(2,831)	8,181	(8,508)
Decrease (increase) in accounts receivable	(51,093)	1,389	(1,389)
(Decrease) increase in accounts payable and accrued expenses	192	(11,010)	15,991
Decrease in lease liabilities	(2,375)	(2,332)	(2,012)
Increase (decrease) in other current liabilities	2,675	2,277	(16,146)
Increase (decrease) in deferred revenue	5,711	(152)	(152)
Net cash used in operating activities	(31,413)	(176,170)	(295,634)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from maturity of short-term securities	96,229	87,275	55,600
Investment in held-to-maturity securities	(146,880)	(107,274)	(55,531)
Purchases of PPE	0	(14)	(401)
Net cash used in investing activities	(50,651)	(20,013)	(332)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment of loan payable	0	(975)	(30,000)
Proceeds from sale of common stock, net	46,296	0	2,219
Proceeds from exercise of options	1,534	584	216
Proceeds from debt financings	25,000	0	70,000
Financing costs paid	(125)	0	(1,016)
Net cash provided by (used in) financing activities	72,705	(391)	41,419
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(9,359)	(196,574)	(254,547)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	103,577	300,151	554,698
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	94,218	103,577	300,151
Reconciliation to amounts on condensed consolidated balance sheets:
Cash and cash equivalents	92,933	102,304	298,887
Restricted cash	1,285	1,273	1,264
Total cash, cash equivalents and restricted cash	94,218	103,577	300,151
Cash paid for:
Interest	8,771	5,445	3,466
Deferred Financing Costs	1,238	0	0
Warrants issued with debt financing	$ 595	$ 0	$ 0