Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (7,870)	$ (54,410)
Adjustments to reconcile net loss to net cash used for operating activities:
Depreciation, amortization, and impairment	1,345	2,387
Share-based compensation	2,689	4,381
Amortization of debt issuance costs and discounts	1,972	215
Interest expense related to the sale of future revenue	0	5,683
Loss on the extinguishment of debt	1,029	0
Other, net	(204)	(52)
Changes in operating assets and liabilities:
Trade receivables and other receivables, net	(3,073)	7,352
Inventories	(989)	(1,743)
Prepaid expenses and other assets	1,290	1,399
Accounts payable	(1,020)	1,633
Accrued expenses and other liabilities	(2,515)	(2,382)
Deferred revenue	966	25,043
Notes Payable	0	675
Net cash used for operating activities	(6,380)	(9,819)
Cash flows from investing activities:
Capital expenditures	(995)	(1,024)
Additions to intangible assets	0	(1,500)
Net cash used for investing activities	(995)	(2,524)
Cash flows from financing activities:
Proceeds from issuance of common stock under public equity offering, net	8,912	3,907
Proceeds from common stock and warrants issued under private equity offering, net	0	9,679
Proceeds from exercise of warrants, net	8,307	0
Proceeds from shares issued under employee stock purchase plan	39	34
Proceeds from exercise of stock options	1	0
Proceeds from issuance of debt	31,144	0
Proceeds from issuance of Royalty Rights Agreements	13,856	0
Debt repayments	(51,529)	0
Payments for financing costs	(4,643)	0
Premium paid to retire debt	(2,102)	(2,025)
Payments for taxes on share-based compensation	(11)	(3)
Net cash provided by financing activities	3,974	11,592
Net decrease in cash and cash equivalents	(3,401)	(751)
Cash and cash equivalents:
Beginning of period	27,273	28,024
End of period	23,872	27,273
Supplemental disclosures of cash flow information:
Cash payments for interest	$ 4,602	$ 6,436