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Debt - Schedule of Changes in Debt Instruments (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Convertible Notes [Member]        
Schedule of Debt Instruments [Line Items]        
Balance of beginning $ 18,419 $ 16,316 $ 16,316 $ 13,981
Less: Current portion 19,533   18,419  
Long term debt  
Issuance of debt
Debt repayments
Change in fair value
Stated interest 1,098 993 2,057 1,820
Amortization of debt discount and issuance costs 16 39 46 515
Balance of ending 19,533 17,348 18,419 16,316
Tasly Convertible Debt [Member]        
Schedule of Debt Instruments [Line Items]        
Balance of beginning 2,234 1,714 1,714
Less: Current portion 2,543   2,234  
Long term debt  
Issuance of debt 16 16 1,600
Debt repayments
Change in fair value 118 11 311 22
Stated interest 191 97 193 92
Amortization of debt discount and issuance costs
Balance of ending 2,543 1,838 2,234 1,714
Senior Notes [Member]        
Schedule of Debt Instruments [Line Items]        
Balance of beginning 25,268 20,155 20,155 15,149
Less: Current portion 27,895   25,268  
Long term debt  
Issuance of debt 1,450 1,120 3,210 3,235
Debt repayments (115) (150)
Change in fair value
Stated interest 1,176 994 2,053 1,771
Amortization of debt discount and issuance costs 1 0
Balance of ending 27,895 22,154 25,268 20,155
Promissory Notes [Member]        
Schedule of Debt Instruments [Line Items]        
Balance of beginning 910 849 849 576
Less: Current portion 940   910  
Long term debt  
Issuance of debt 375
Debt repayments (151)
Change in fair value
Stated interest 30 31 61 49
Amortization of debt discount and issuance costs
Balance of ending 940 880 910 849
PPP Loan [Member]        
Schedule of Debt Instruments [Line Items]        
Balance of beginning 1,376 1,362 1,362 1,326
Less: Current portion 1,383   1,376  
Long term debt  
Issuance of debt
Debt repayments
Change in fair value
Stated interest 7 7 14 36
Amortization of debt discount and issuance costs
Balance of ending $ 1,383 $ 1,369 $ 1,376 $ 1,362