Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net loss	$ (8,141)	$ (47,898)
Less: Loss from discontinued operations	4,916	38,020
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	235	384
Non-cash stock-based compensation expense	459	1,272
Accretion of discounts on marketable securities, net	(28)	(1,318)
Amortization of debt issuance costs	460	325
Amortization of operating lease right-of-use assets	542	513
Gain on sale of business, net	(8,096)	(5,927)
Change in fair value of warrant liability	(107)	(1,478)
Change in fair value of contingent consideration	0	123
Changes in operating assets and liabilities:
Accounts receivable	(3,499)	3,247
Inventory	87	11,567
Employer retention credit receivable	0	4,703
Prepaid expenses and other current assets	286	2,010
Accounts payable	(1,050)	(3,020)
Accrued liabilities	(1,442)	(8,043)
Operating lease liabilities	(532)	(253)
Other long-term liabilities	0	20
Net cash used in operating activities - continuing operations	(15,910)	(5,753)
Net cash used in operating activities - discontinued operations	(11,692)	(39,352)
Net cash used in operating activities	(27,602)	(45,105)
Cash flows from investing activities
Proceeds from sale of business	13,235	17,000
Purchases of available-for-sale marketable securities	0	(38,521)
Sales of available-for-sale marketable securities	500	0
Maturities of available-for-sale marketable securities	2,750	70,250
Purchases of property and equipment	(148)	(1,187)
Net cash provided by investing activities - continuing operations	16,337	47,542
Net cash provided by (used in) investing activities - discontinued operations	339	(207)
Net cash provided by investing activities	16,676	47,335
Cash flows from financing activities
Repayment of debt	(2,625)	0
Proceeds from the exercise of stock options	0	4
Repurchase of common shares to pay employee withholding taxes	0	(35)
Proceeds from employee stock purchase plan	0	25
Payment of contingent consideration	0	(1,923)
Net cash used in financing activities - continuing operations	(2,625)	(1,929)
Net cash used in financing activities - discontinued operations	(41)	(240)
Net cash used in financing activities	(2,666)	(2,169)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(13)	(294)
Net change in cash, cash equivalents and restricted cash	(13,605)	(233)
Cash, cash equivalents and restricted cash, at the beginning of the period	26,200	31,348
Cash, cash equivalents and restricted cash, at the end of the period	12,595	31,115
Supplemental disclosure of cash flow information:
Cash paid for interest	3,394	3,731
Supplemental disclosure of noncash investing and financing activities:
Accounts receivable from sale of business	4,478	6,111
Change in unrealized (gain) on marketable securities	0	(7)
Change in unpaid purchases of property and equipment	$ 0	$ 35