Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Cash flows from operating activities
Net loss	$ (27,793)	$ (7,442)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Stock-based compensation	4,610	449
Depreciation	121	9
Amortization of debt issuance cost	173	0
Loss from unconsolidated subsidiary	0	218
Gain from disposal of investment in unconsolidated subsidiary	(337)	0
(Gain) loss on extinguishment of debt	0	(790)
Warranty provision	516	1,554
Warranty recoverable from manufacturer	(205)	328
Bad debt expense (credit)	(30)	58
Deferred income taxes	0	(20)
Lease expense and other non-cash items	198	0
Impact on cash from changes in operating assets and liabilities:
Accounts receivable, net	(24,652)	(20,230)
Inventories	(58)	(2,587)
Prepaid and other current assets	3,440	216
Other assets	(40)	(3,649)
Accounts payable	7,258	12,913
Accruals and other current liabilities	(17,044)	8,360
Accrued interest – related party debt	0	(207)
Deferred revenue	1,679	(14,797)
Other non-current liabilities	(752)	(206)
Lease payments and other, net	(190)	(81)
Net cash used in operating activities	(53,106)	(25,904)	$ (132,900)
Cash flows from investing activities:
Purchases of property and equipment	(523)	(85)
Proceeds from disposal of investment in unconsolidated subsidiary	337	0
Net cash used in investing activities:	(186)	(85)
Cash flows from financing activities:
Repayments of borrowings	0	(1,000)
Offering costs paid	0	(1,084)
Proceeds from stock issuance	0	39
Proceeds from stock option exercises	428	0
Net cash provided by (used in) financing activities	428	(2,045)
Effect of exchange rate changes on cash and restricted cash	62	1
Net decrease in cash, cash equivalents and restricted cash	(52,802)	(28,033)
Cash, cash equivalents and restricted cash at beginning of period	102,185	33,373	33,373
Cash, cash equivalents and restricted cash at end of period	49,383	5,340	$ 102,185
Supplemental disclosures of cash flow information:
Purchases of property and equipment included in ending accounts payable and accruals	59	67
Increase in offering costs in period end accruals	0	2,019
Commencement of new operating leases	0	246
Cash paid during the period for third party interest	128	40
Cash paid during the period for related party interest	0	207
Cash paid during the period for taxes	$ 7	$ 0