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Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Apr. 15, 2021 | Dec. 31, 2020
Product Information [Line Items] |  |  |  |  |  |
Impairment charge on goodwill and intangible asset |  |  | $ 0 |  |  |
Allowance for doubtful accounts | $ 0 |  | 0 |  |  |
Equity Securities, FV-NI, Current | 923,000 |  | 923,000 |  |  | $ 675,000
Deferred Revenue | 500,000 |  | 500,000 |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 984,000 | $ 555,000 | 4,138,000 | $ 713,000 |  |
Chronix Acquisition [Member] |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Deferred Revenue | $ 738,000 |  | $ 738,000 |  | $ 738,000 |
Lineage and AgeX [Member] |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Common Stock, Shares Held as Available for Sale Securities | 353,264 |  | 353,264 |  |  | 35,326
Equity Securities, FV-NI, Current | $ 900,000 |  | $ 900,000 |  |  | $ 700,000
Pharma Services [Member] |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Accounts Receivable, Sale |  |  | 300,000 |  |  |
Medicare for DetermaRx and Medicare Advantage for DetermaRx [Member] |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Accounts Receivable, Sale |  |  | $ 1,000,000.0 |  |  |
License [Member] | Chronix Acquisition [Member] |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | $ 478,000 |  |  |  |  |

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