Segment Reporting (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)
Segment Reporting
Number of reportable segments \| segment							1
Segment Reporting
Total 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
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
Depreciation and amortization	1,044			1,021			3,185	3,123
Stock-based compensation	1,954			3,370			8,507	9,949
Total operating expenses	19,382			20,289			61,785	63,411
Other income	1,733			2,496			5,637	7,838
Net loss	(12,416)	$ (12,357)	$ (10,261)	(11,557)	$ (9,375)	$ (9,526)	(35,034)	(30,458)
Cell Engineering Technology Segment
Segment Reporting
Core revenue	6,406			8,140			22,848	23,902
Non-core revenue	423			24			2,878	6,032
Total 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
Research and development	5,671			4,549			16,612	15,238
Sales and marketing	4,925			5,419			15,179	17,950
General and administrative	5,788			5,930			18,302	17,151
Depreciation and amortization	1,044			1,021			3,185	3,123
Stock-based compensation	1,954			3,370			8,507	9,949
Total operating expenses	19,382			20,289			61,785	63,411
Other income	1,733			2,496			5,637	7,838
Net loss	$ (12,416)			$ (11,557)			$ (35,034)	$ (30,458)

Amount of core revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

No definition available.