Schedule of Total Revenue by geographic region (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Total Revenue	$ 2,290	$ 7,315	$ 5,684	$ 15,659
Percentage of Total Revenue	100.00%	100.00%	100.00%	100.00%
UNITED STATES
Total Revenue	$ 1,790	$ 6,712	$ 4,328	$ 14,863
Percentage of Total Revenue	78.00%	92.00%	76.00%	95.00%
CHINA
Total Revenue	$ 189	$ 587	$ 1,015	$ 763
Percentage of Total Revenue	8.00%	8.00%	18.00%	5.00%
KOREA, REPUBLIC OF
Total Revenue	$ 145	$ 0	$ 145	$ 0
Percentage of Total Revenue	6.00%	0.00%	3.00%	0.00%
GEORGIA, REPUBLIC OF
Total Revenue	$ 140	$ 0	$ 140	$ 0
Percentage of Total Revenue	6.00%	0.00%	2.00%	0.00%
Other [Member]
Total Revenue	$ 26	$ 16	$ 56	$ 33
Percentage of Total Revenue	2.00%	0.00%	1.00%	0.00%

Amount of 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).

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+ Details