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9. FAIR VALUE MEASUREMENTS (Details - Fair Value on a Recurring Basis) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair value of assets | $ 122,469 | $ 109,103
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] |  |
Fair value of assets | 122,469 | 109,103
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Warrant Investment [Member] |  |
Fair value of assets |  | 0
Assets [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair value of assets | 57,851 | 2,752
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member] |  |
Fair value of assets | 57,851 | 0
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Warrant Investment [Member] |  |
Fair value of assets |  | 2,752
Assets [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair value of assets | 0 | 0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |
Fair value of assets | 0 | 0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Warrant Investment [Member] |  |
Fair value of assets |  | 0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Series A Warrants [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Series B Warrants [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Embedded Derivative Liability [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair value of assets | 0 | 6,640
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Series A Warrants [Member] |  |
Fair value of assets | 0 | 6,640
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Series B Warrants [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Embedded Derivative Liability [Member] |  |
Fair value of assets | 0 | 0
Liability [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair value of assets | 284,618 | 79,069
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Series A Warrants [Member] |  |
Fair value of assets | 18,243 | 0
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Series B Warrants [Member] |  |
Fair value of assets | 225,956 | 52,341
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Embedded Derivative Liability [Member] |  |
Fair value of assets | $ 40,419 | $ 26,728

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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