Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenues [Abstract]
Total revenues	$ 9,499	$ 8,945
OPERATING EXPENSES:
Cost of sales	334	671
Research and development	12,472	15,705
General and administrative	18,171	17,302
Total operating expenses	30,977	33,678
Loss from operations	(21,478)	(24,733)
OTHER INCOME (EXPENSES):
Interest income, net	1,715	1,629
Loss on marketable equity securities, net	(8)	(176)
Change in fair value of warrant liability	2,128	0
Foreign currency transaction loss, net	(269)	(544)
Other income (expense), net	(670)	542
Total other income (expenses)	2,896	1,451
LOSS BEFORE INCOME TAXES	(18,582)	(23,282)
Provision for income tax benefit	0	1,803
NET LOSS	(18,582)	(21,479)
Net (income) loss attributable to noncontrolling interest	(27)	(7)
NET LOSS ATTRIBUTABLE TO LINEAGE	$ (18,609)	$ (21,486)
Net loss per common share attributable to Lineage basic	$ (0.09)	$ (0.12)
Net loss per common share attributable to Lineage diluted	$ (0.09)	$ (0.12)
Weighted-average common shares used to compute net loss per common share, basic	200,193	172,663
Weighted-average common shares used to compute net loss per common share, diluted	200,193	172,663
Collaboration Revenues [Member]
Revenues [Abstract]
Total revenues	$ 8,149	$ 7,588
Royalties, License and Other Revenues [Member]
Revenues [Abstract]
Total revenues	$ 1,350	$ 1,357