Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (17,791)	$ (8,776)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	184	40
Amortization of intangible assets	911	828
Noncash interest expense		78
Loss on extinguishment of debt, net		2,061
Loss on disposal of assets, net	381
Stock-based compensation	1,570	(263)
Bad debt expense	(104)	56
Provision for inventory excess and obsolescence	129	13
Deferred income tax	(188)
Amortization of debt discount and deferred debt issuance costs		494
Other noncash items	(18)	15
Change in operating assets and liabilities, net of business combination:
Accounts and other receivables	471	(859)
Inventory	(1,352)	481
Prepaid expenses and other current assets	353	(267)
Accounts payable and accrued liabilities	1,681	1,853
Warranty liability	(185)	(219)
Other	158	316
Net cash used in operating activities	(13,800)	(4,149)
Cash flows from investing activities:
Capital expenditures	(19)	(196)
Proceeds from acquisition		5,207
Proceeds from sale of capital assets	39
Cash provided by investing activities::	20	5,011
Cash flows from financing activities:
Proceeds from warrants exercised	2,489	45,616
Proceeds from stock options exercised		216
Proceeds from credit agreement		1,000
Payment of credit agreement		(10,500)
Net cash provided by financing activities	2,489	36,332
Effect of currency exchange rate changes on cash and cash equivalents	20	12
Net (decrease) increase in cash, cash equivalents and restricted cash	(11,271)	37,206
Cash, cash equivalents and restricted cash at beginning of period	22,815	3,007
Cash, cash equivalents and restricted cash at end of period	11,544	40,213
Supplemental disclosure:
Cash paid for income taxes		31
Cash paid for interest		296
Noncash investing and financing activities:
Capital expenditures accruals	$ 14	51
Purchase price, net of cash received		25,355
Deferred issuance cost related to abeyance of shares		17,705
Fair value of warrants included as a component of loss on extinguishment of debt		$ 2,974