Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net (loss) income	$ (28,775,000)	$ 51,445,000
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Stock-based compensation	1,462,000	1,196,000
Bad debt expense	10,000	174,000
Depreciation and amortization expense	1,204,000	601,000
Impairment of goodwill	8,606,000	0
Contingent consideration	0	(23,000)
Change in fair value of obligation to issue shares of common stock	(498,000)	514,000
Fair value change of warrant liability	(4,500,000)	(74,731,000)
Gain on extinguishment of debt	(4,527,000)	0
Gain on disposal of assets	(16,000)	0
Change in operating right-of-use assets	354,000	(2,000)
Interest on finance leases	17,000	15,000
Debt discount	0	(60,000)
Changes in operating assets and liabilities:
Accounts receivable, net	(584,000)	6,649,000
Inventory, net	1,073,000	(7,534,000)
Prepaid expenses and other current assets	(283,000)	(6,000)
Other assets	(26,000)	(18,000)
Accounts payable	(1,770,000)	(901,000)
Accrued expenses and other current liabilities	(2,470,000)	2,206,000
Deferred revenue	451,000	(69,000)
Net cash used in operating activities	(30,272,000)	(20,544,000)
Investing activities:
Proceeds from sale of property and equipment	229,000	0
Payments to acquire net assets of World Energy, net of cash acquired	0	(8,112,000)
Return of deposit	780,000	0
Purchases of property and equipment	(265,000)	(1,774,000)
Net cash provided by (used in) investing activities	744,000	(9,886,000)
Financing activities:
Repayments of debt	(66,000)	(63,000)
Repayments under financing leases	(144,000)	(151,000)
Proceeds from recapitalization of PIC shares	0	75,000
Proceeds from exercise of stock options	433,000	23,000
Proceeds from exercise of Public Warrants	0	85,555,000
Net cash provided by financing activities	223,000	85,439,000
Net (decrease) increase in cash and cash equivalents and restricted cash:	(29,305,000)	55,009,000
Cash and cash equivalents and restricted cash, beginning of period	351,826,000	329,791,000
Cash and cash equivalents and restricted cash, end of period	322,521,000	384,800,000
Supplemental disclosure of cash flow information:
Cash paid for interest	35,000	15,000
Supplemental disclosures of noncash investing and financing information:
Recording of operating lease asset and liability	1,815,000	0
Settlement of lease liability	474,000	0
Settlement of contingent liability through issuance of shares	186,000	0
Settlement of warrant liability upon exercise of Public Warrants	0	47,162,000
Settlement of warrant liability upon call of warrants	0	591,000
Equipment financing	$ 0	$ 271,000