Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue	$ 22	$ 32	$ 86	$ 52
Cost of revenue	108	160	204	423
Gross loss	(86)	(128)	(118)	(371)
OPERATING EXPENSES:
Research and development	3,670	3,838	7,160	8,370
Sales and marketing	601	67	984	408
General and administrative	4,348	4,223	7,243	9,838
Total operating expenses	8,619	8,128	15,387	18,616
LOSS FROM OPERATIONS	(8,705)	(8,256)	(15,505)	(18,987)
OTHER INCOME (EXPENSE):
Change in fair value of convertible note and warrant liabilities	(593)	(15)	87	(13)
Interest income and other	393	228	607	423
Interest expense and other	(365)	56	(2,473)	373
Total other income (expense), net	(565)	269	(1,779)	783
Provision for income tax expense			2	2
Net loss	(9,270)	(7,987)	(17,286)	(18,206)
Change in net unrealized gain (loss) on available-for-sale securities, net of tax	(6)	(4)	(5)	(18)
Comprehensive loss	$ (9,276)	$ (7,991)	$ (17,291)	$ (18,224)
PER SHARE DATA
Net loss per share (basic and diluted) (in dollars per share)	$ (0.48)	$ (1.16)	$ (0.95)	$ (2.8)
Weighted average shares outstanding (basic and diluted) (in shares)	19,125,970	6,874,454	18,137,050	6,499,089
Prototype Sales [Member]
OTHER INCOME (EXPENSE):
Loss before income tax expense	$ (9,270)	$ (7,987)	$ (17,284)	$ (18,204)
Development Contracts [Member]
OTHER INCOME (EXPENSE):
Provision for income tax expense	$ 0	$ 0	$ 2	$ 2