Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net loss	$ (11,264)	$ (5,661)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	172	139
Noncash interest expense	151	151
Amortization of intangible assets	95	95
Net changes in operating lease ROU assets and liabilities	(26)	(22)
Inventory excess and obsolescence charge	630	560
Stockbased compensation expense	1,044	1,102
Gain on sale of product line		(7,580)
Deferred income tax expense	52
Change in operating assets and liabilities:
Accounts receivable, net	(402)	(234)
Inventory	(1,346)	(1,430)
Prepaid expenses and other current assets	180	479
Accounts payable	1,853	1,515
Accrued expenses and other current and long-term liabilities	(930)	(3,474)
Foreign currency transaction loss (gain)	66	(24)
Net cash used in operating activities	(9,725)	(14,384)
Cash flows from investing activities:
Purchase of property and equipment	(32)	(304)
Proceeds from the sale of product line	170	5,000
Net cash provided by investing activities	138	4,696
Cash flows from financing activities:
Proceeds from exercise of stock options	1	220
Payment of withholding taxes related to stock-based compensation to employees	(177)	(328)
Proceeds from issuance of common stock under the employee stock purchase plan	60	164
Net cash (used in) provided by financing activities	(116)	56
Effect of exchange rate on cash and cash equivalents	(134)	46
Net decrease in cash and cash equivalents and restricted cash	(9,837)	(9,586)
Cash and cash equivalents and restricted cash, beginning of period	52,935	46,994
Cash and cash equivalents and restricted cash, end of period	43,098	37,408
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	$ 1,370	1,181
Supplemental disclosures of noncash investing and financing activities:
Property and equipment in accounts payable and accrued expenses and other current liabilities		$ 176