CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Cash flows from operating activities:
Net loss	$ (70,795)	$ (102,254)
Adjustments to reconcile net loss to cash flows used in operating activities:
Amortization of intangible assets	0	2,050
Impairment of intangible assets	0	20,699
Depreciation of property and equipment	464	396
Amortization of debt discount and premium and discount on available-for-sale marketable securities	(856)	(558)
Loss on extinguishment of debt	1,347	1,559
Provision for excess and obsolete inventory	693	1,949
Stock-based compensation	12,057	14,177
Deferred income tax	83
Changes in operating assets and liabilities:
Accounts receivable and other current assets	14,432	(2,662)
Inventory	(1,553)	(760)
Accounts payable and accrued expenses	1,519	1,198
Right-of-use assets and operating lease liabilities	(39)	69
Deferred revenue	44,523	(868)
Net cash provided by (used in) operating activities	1,875	(65,005)
Cash flows from investing activities:
Purchases of marketable securities	(55,116)	(139,115)
Sales and maturities of marketable securities	55,284	124,000
Purchases of property and equipment	(3,483)	(2,150)
Net cash used in investing activities	(3,315)	(17,265)
Cash flows from financing activities:
Proceeds from issuance of stock	226,174	0
Proceeds from issuance of long-term debt	0	30,000
Payment of equity and debt issue costs	(451)	(599)
Payment of long-term debt	(30,000)	(38,235)
Payment of extinguishment of debt costs	(1,350)	(2,294)
Borrowings under revolving facility	5,300	43,875
Repayment under revolving facility	(15,775)	(33,400)
Net settlement of stock units to satisfy statutory tax withholding	(169)	(295)
Proceeds from exercise of stock options and employee stock purchase plan	3,377	395
Principal payments on finance lease obligations	(36)	(137)
Net cash provided by (used in) financing activities	187,070	(690)
Net increase (decrease) in cash, cash equivalents and restricted cash	185,630	(82,960)
Cash, cash equivalents and restricted cash at beginning of year	95,783	178,743
Cash, cash equivalents and restricted cash at end of year	281,413	95,783
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	281,263	95,633
Restricted cash	150	150
Total cash, cash equivalents and restricted cash	281,413	95,783
Supplemental cash flow information:
Cash interest paid	1,405	2,600
Supplemental disclosure of non-cash investing and financing activities:
Accrued term loan exit fee	0	600
Stock issuance costs	$ 325	$ 0