Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (47,647)	$ (4,723)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	799	621
Amortization of debt issuance costs	0	19
Amortization of debt discount	19	89
Non-cash gain on forgiveness of debt	(2,098)	0
Non-cash loss on extinguishment of debt	173
Loss (gain) on disposal of intangibles	7	(11)
Stock-based compensation	2,310	702
Write-down of inventory to net realizable value	84	0
Provision for losses on accounts receivable	699	20
Interest expense from contingent beneficial conversion feature	26,061	0
Common stock warrant liability adjustment	(5,792)	0
Preferred stock warrant liability adjustment	5,578	(9)
Changes in operating assets and liabilities:
Accounts receivable	(14,750)	(2,060)
Prepaid expenses and other assets	(5,000)	(590)
Inventory	(2,397)	(2,301)
Accounts payable	64	8,409
Accrued and other expenses	6,793	3,775
Deferred related party convertible notes payable interest	186	258
Deferred revenues	272	489
Deferred rent	(64)	(14)
Net cash (used in) provided by operating activities	(34,703)	4,674
Cash flows from investing activities
Purchase of property and equipment	(883)	(884)
Purchase of intangible assets	(87)	(56)
Internally developed software	(590)	0
Net cash used in investing activities	(1,560)	(940)
Cash flows from financing activities
Proceeds from lines of credit	8,182	10,533
Payments on line of credit	(6,757)	(11,266)
Proceeds from issuance of long-term debt	5,000	1,000
Proceeds from financed insurance premium	5,526	637
Payments on financed insurance premium	(1,910)	(191)
Payments for extinguishment of debt	(9)	0
Payments for cash payout of stock options as a result of the Merger	9,890	0
Proceeds from Paycheck Protection Program loan	0	2,075
Proceeds from exercise of common stock options	345	87
Proceeds from reverse recapitalization and PIPE financing, net of $11,836 and $0, respectively, of transaction costs	133,663	0
Net cash provided by financing activities	134,150	2,875
Net change in cash and cash equivalents	97,887	6,609
Cash and cash equivalents at beginning of period	17,009	11,736
Cash and cash equivalents at end of period	114,896	18,345
Supplemental disclosure of cash flow information:
Cash paid for interest	538	337
Supplemental disclosure of non-cash financing activities:
Conversion of redeemable convertible preferred stock to common stock	47,188	0
Conversion of related party convertible notes to common stock	33,183	0
Payments for cash payout of stock options as a result of the Merger	22,806
Issuance of common stock warrants in connection with debt amendment and new debt issuance	0	226
Unpaid purchases of property and equipment	0	36
Unpaid purchases of intangibles	$ 38	$ 13