Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net loss	$ (18,261)	$ (22,817)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	293	239
Noncash interest expense	302	296
Amortization of intangible assets	190	190
Net changes in operating lease ROU assets and liabilities	(47)	(22)
Inventory excess and obsolescence charge	908	704
Stock-based compensation expense	2,192	2,422
Gain on sale of product line	(7,580)
Change in operating assets and liabilities:
Accounts receivable, net	263	(1,219)
Inventory	(1,545)	(2,936)
Prepaid expenses and other current assets	253	107
Accounts payable	594	651
Accrued expenses and other current and long-term liabilities	(2,627)	(104)
Foreign currency translation loss	(16)	(349)
Net cash used in operating activities	(25,081)	(22,838)
Cash flows from investing activities:
Purchase of property and equipment	(603)	(272)
Proceeds from the sale of product line	5,366
Net cash provided by (used in) investing activities	4,763	(272)
Cash flows from financing activities:
Proceeds from sale of common stock, net of underwriting discounts, commissions and offering costs		46,354
Proceeds from exercise of stock options	226	100
Payment of withholding taxes related to stock-based compensation to employees	(339)	(280)
Proceeds from issuance of common stock under the employee stock purchase plan	164
Net cash provided by financing activities	51	46,174
Effect of exchange rate on cash and cash equivalents	34	183
Net (decrease) increase in cash and cash equivalents and restricted cash	(20,233)	23,247
Cash and cash equivalents and restricted cash, beginning of period	46,994	42,019
Cash and cash equivalents and restricted cash, end of period	26,761	65,266
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	2,361	2,248
Supplemental disclosures of noncash investing and financing activities:
Offering costs in accounts payable and accrued expenses and other current liabilities		13
Property and equipment in accounts payable and accrued expenses and other current liabilities	$ 55	$ 49