Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Unaudited Condensed Consolidated Statements of Operations
Revenue	$ 6,829	$ 8,164	$ 25,726	$ 29,934
Cost of goods sold	1,596	1,928	4,612	4,819
Gross profit	5,233	6,236	21,114	25,115
Operating expenses:
Research and development	5,316	5,316	17,488	17,613
Sales and marketing	3,936	6,207	15,420	20,188
General and administrative	6,028	7,745	22,634	22,487
Restructuring expense	3,058		3,058
Depreciation and amortization	1,044	1,021	3,185	3,123
Total operating expenses	19,382	20,289	61,785	63,411
Operating loss	(14,149)	(14,053)	(40,671)	(38,296)
Other income:
Interest income	1,733	2,496	5,637	7,838
Total other income	1,733	2,496	5,637	7,838
Loss before income taxes	(12,416)	(11,557)	(35,034)	(30,458)
Net loss	$ (12,416)	$ (11,557)	$ (35,034)	$ (30,458)
Basic net loss per share	$ (0.12)	$ (0.11)	$ (0.33)	$ (0.29)
Diluted net loss per share	$ (0.12)	$ (0.11)	$ (0.33)	$ (0.29)
Weighted-average shares outstanding, basic	106,613,075	105,109,603	106,324,792	104,614,679
Weighted-average shares outstanding, diluted	106,613,075	105,109,603	106,324,792	104,614,679

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1