| 5. Indefinite-Lived Intangible Assets (Details Narrative) - USD ($) | 3 Months Ended | ||
|---|---|---|---|
| Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019 | |
| Indefinite-lived Intangible Assets [Line Items] | |||
| Carrying value of indefinite-lived intangible asset | $ 9,243,128 | $ 9,243,128 | |
| OncoHist [Member] | |||
| Indefinite-lived Intangible Assets [Line Items] | |||
| Carrying value of indefinite-lived intangible asset | 9,200,000 | $ 9,200,000 | |
| Impairment of indefinite-lived intangible asset | $ 0 | $ 0 | |
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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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. No definition available. 
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| X | ||||||||||
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Details 
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