CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net loss	$ (28,033)	$ (60,919)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	288	1,118
Amortization intangible assets	51	585
Amortization of right-of-use lease assets	1,119	1,272
Excess and obsolete inventory provisions	356	2,917
Impairment of long-lived assets	776	2,626
Credit loss expenses (recoveries)	(219)	422
Impairment of intangible assets		1,046
Stock-based compensation	4,823	7,276
Amortization of debt issuance costs	1,970	621
Accretion of available for sale securities, net	(406)	(2,248)
Gain on sale of discontinued operations	(5,703)
Changes in operating assets and liabilities:
Accounts receivable	1,619	295
Inventory	75	852
Prepaid expenses and other assets	1,418	6,047
Accounts payable	786	(3,262)
Accrued expenses and other liabilities	(3,618)	(3,955)
Deferred revenue	224	103
Accrued compensation	(178)	(858)
Net cash used in operating activities	(24,652)	(46,062)
Cash flows from investing activities:
Purchases of available-for-sale securities	(4,506)	(60,069)
Proceeds from maturities of available-for-sale securities	36,273	103,400
Purchases of property and equipment	(161)	(929)
Proceeds from sale of discontinued operations, net	14,208
Net cash provided by investing activities	45,814	42,402
Cash flows from financing activities:
Principal repayments on term loan	(24,900)
Issuance of stock under employee stock plans		127
Taxes paid on vested stock awards under employee stock plans	(7)	(92)
Principal repayments on finance lease	(38)	(31)
Net cash provided by (used in) financing activities	(24,945)	4
Net decrease in cash and cash equivalents	(3,783)	(3,656)
Cash and cash equivalents at beginning of year	14,009	17,665
Cash and cash equivalents at end of year	10,226	14,009
Cash paid for:
Taxes	2	2
Interest	3,475	5,813
Supplemental schedule of non-cash investing and financing activities:
Operating lease right-of-use assets obtained in exchange for lease liabilities	$ 1,836	$ 1,792