Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net loss	$ (31,007)	$ (6,887)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,914	1,700
Goodwill impairment charge	23,989	0
Non-cash lease expense	(151)	(27)
Change in fair value of warrant and derivative liabilities	(185)	(2,984)
Loss on derecognition of debt	0	627
Amortization of debt discount and issuance costs	0	2,117
Stock based compensation	1,136	945
Gain on license of patents, net	(198)	0
Gain on disposal of assets	0	(3)
Changes in operating accounts:
Accounts receivable	3,611	(685)
Prepaid expenses and other assets	44	164
Accounts payable and accrued liabilities	(469)	(65)
Other liabilities	(29)	(237)
Net cash used in operating activities	(1,345)	(5,335)
Investing activities:
Capital expenditures, net	(4)
Capital expenditures, net		3
Proceeds from license of patents, net	198	0
Net cash provided by investing activities	194	3
Financing activities:
Proceeds from financing arrangements	468	442
Repayments of financing arrangements	(289)	(420)
Other financing activities	2	8
Net cash provided by financing activities	181	30
Net decrease in cash and cash equivalents	(970)	(5,302)
Cash and cash equivalents, beginning of period	7,125	14,026
Cash and cash equivalents, end of period	6,155	8,724
Non-cash investing and financing activities:
Issuance of common stock in settlement and prepayment of notes payable	$ 0	$ 3,000