Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	12 Months Ended			36 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2022
Cash flows from operating activities
Net loss	$ (99,613)	$ (106,589)	$ (15,924)
Adjustments to reconcile net loss to cash used in operating activities:
Stock-based compensation	20,303	61,765	1,818
Depreciation and amortization	900	232	47
Loss from sale of property and equipment	183
Amortization of debt issue costs	703	461	0
Provision for litigation settlement	4,493
Provision for obsolete and slow-moving inventory	1,813	90	0
(Gain) loss from unconsolidated subsidiary	0	354	(1,399)
Gain from disposal of investment in unconsolidated subsidiary	(1,745)	(20,829)	0
(Gain) loss on extinguishment of debt	0	(790)	116
Warranty provision	8,228	8,588	7,866
Warranty recoverable from manufacturer	(302)	(928)	(1,021)
Bad debt expense (credit)	1,159	(91)	24
Deferred income taxes	(135)	0	(3)
Lease expense and other	705	458	50
Impact on cash from changes in operating assets and liabilities:
Accounts receivable, net	57,337	(83,723)	(9,710)
Inventories	(7,902)	(7,264)	2,819
Prepaid and other current assets	7,189	(10,237)	(2,847)
Other assets	(1,019)	(2,137)	(1,672)
Accounts payable	(22,940)	21,659	10,076
Accruals and other current liabilities	(32,670)	34,095	7,162
Accrued interest – related party debt	0	0	(78)
Deferred revenue	9,895	(21,559)	3,107
Other non-current liabilities	(599)	(6,016)	496
Lease payments and other, net	(493)	(393)	(298)
Net cash provided by (used in) operating activities	(54,510)	(132,854)	629	$ (186,700)
Cash flows from investing activities:
Purchases of property and equipment	(985)	(1,025)	(256)
Proceeds from sale of property and equipment	86	0	0
Acquisitions, net of cash acquired	(5,093)
Proceeds from disposal of investment in unconsolidated subsidiary	1,745	22,332	2,124
Net cash provided by (used in) investing activities	(4,247)	21,307	1,868
Cash flows from financing activities:
Proceeds from borrowings	0	0	784
Repayments of borrowings	0	(1,000)	(7,000)
Repurchase and retirement of common stock held by related parties	0	(54,155)	0
Offering costs paid	0	(5,948)	(1,140)
Proceeds from stock issuance	0	241,155	30,000
Proceeds from stock option exercises	903	317	0
Net cash provided by financing activities	903	180,369	22,644
Effect of exchange rate changes on cash, cash equivalents and restricted cash	54	(10)	(3)
Net increase (decrease) in cash, cash equivalents and restricted cash	(57,800)	68,812	25,138
Cash, cash equivalents and restricted cash at beginning of period	102,185	33,373	8,235	8,235
Cash, cash equivalents and restricted cash at end of period	44,385	102,185	33,373	$ 44,385
Supplemental disclosures of cash flow information:
Purchases of property and equipment included in ending accounts payable and accruals	11	478	0
Offering costs in period end accruals	0	0	449
Commencement of new operating leases	0	1,540	688
Cash paid during the period for third party interest	784	254	0
Cash paid during the period for related party interest	0	207	350
Cash paid during the period for taxes, net of refunds	$ 123	$ 76	$ 0