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Segments - Schedule of Consolidated Condensed Financial Statements of Operating Segment (Details) - Operating Segments [Member] - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Schedule of Consolidated Condensed Financial Statements of Operating Segment [Line Items]        
Government grant revenue $ 25 $ 25
Operating expenses:        
Research personnel compensation costs, including stock-based compensation 320 385 658 818
CRO and regulatory costs 15
Administrative personnel compensation costs, including stock-based compensation 401 350 736 712
Rent and office costs 118 80 318 162
Legal and accounting costs 110 179 649 592
Other expenses [1] 54 7 66 41
Total segment expenses 1,003 1,001 2,427 2,340
Loss from operations (1,003) (976) (2,427) (2,315)
Other income (expense)        
Loss on change in the fair value of related party Tasly convertible debt (57) (15) (118) (11)
Interest expense (1,289) (1,081) (2,519) (2,161)
Other income 1 1 6
Total other expense, net (1,345) (1,095) (2,637) (2,166)
Net loss and comprehensive loss $ (2,348) $ (2,071) $ (5,064) $ (4,481)
[1] Other expenses includes small balances of research materials and supplies along with insurance costs.