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Fair Value Measurement - Schedule of Fair Value of the Company’s Level 3 Financial Instruments (Details) - Level 3 [Member] - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Schedule of Fair Value of the Company’s Level 3 Financial Instruments [Line Items] |  |  |  |  |  |
Fair value as of beginning balance | $ 2,390 | $ 2,234 | $ 1,774 | $ 1,714 | $ 1,714 |
Fair value as of Ending balance | 2,543 | 2,390 | 1,838 | 1,774 | 2,234 | $ 1,714
Issuance of Convertible Notes |  |  |  | 16 | 16 | 1,600
Accrued stated interest | 96 | 95 | 49 | 48 | 194 | 92
Change in fair value included in other income and gain loss on change in the fair value of Tasly convertible debt | $ 57 | $ 61 | $ 15 | $ (4) | $ 311 | $ 22

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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