Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net income (loss)	$ 8,068	$ (13,220)
Adjustments to reconcile net loss to net cash used for operating activities:
Depreciation, amortization, and impairment	325	727
Share-based compensation	344	913
Amortization of debt issuance costs and discounts	56	40
Interest expense related to the sale of future revenue, net	0	1,836
Other, net	(260)	(100)
Changes in operating assets and liabilities:
Trade and other receivables, net	(2,217)	(7,678)
Inventories, net	(1,201)	(591)
Prepaid expenses and other assets	(195)	(230)
Accounts payable	2,494	182
Accrued expenses and other liabilities	(3,472)	(3,963)
Deferred revenue	4,874	7,602
Net cash used for operating activities	8,816	(14,482)
Investing activities:
Capital expenditures	(2)	(104)
Net cash used for investing activities	(2)	(104)
Financing activities:
Proceeds from common stock issued under public equity offering, net	916	1,298
Repayment of debt principal	(9,086)	0
Premium paid to retire debt	(1,027)	0
Payments for taxes on share-based compensation	(8)	0
Net cash provided by financing activities	(9,205)	1,298
Net (decrease) increase in cash and cash equivalents	(391)	(13,288)
Cash and cash equivalents at beginning of period	27,273	28,024
Cash and cash equivalents at end of period	26,882	14,736
Supplemental disclosures of cash flow information:
Cash payments for interest	$ 1,466	$ 1,609