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The following table summarizes the changes in the Company’s investments in AVLP, Alzamend and Ault & Company during the six months ended June 30, 2021 (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Fair value of warrants issued by AVLP | $ (290,000) | $ 10,000 | $ 388,000 | $ 6,000 |
Avalanche International Corp And Alzamend [Member] |  |  |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Balance at January 1, 2021 |  |  | 16,807,000 |  |
Investment in convertible promissory notes of AVLP |  |  | 1,540,000 |  |
Investment in convertible promissory note of Alzamend |  |  | (50,000) |  |
Investment in promissory note of Ault & Company |  |  | 2,500,000 |  | $ 50,000
Investment in common stock of AVLP and Alzamend |  |  | 14,093,000 |  |
Investment in warrants of Alzamend |  |  | 954,000 |  |
Short-term advance in Alzamend |  |  | (750,000) |  | 750,000
Fair value of warrants issued by AVLP |  |  | 2,240,000 |  |
Unrealized loss in warrants of AVLP |  |  | (2,924,000) |  |
Unrealized gain in warrants of Alzamend |  |  | 8,612,000 |  |
Unrealized gain in common stock of AVLP and Alzamend |  |  | 31,241,000 |  |
Accretion of discount |  |  | 4,000 |  |
Accrued interest |  |  | 1,000 |  |
Balance at June 30, 2021 | 74,268,000 |  | 74,268,000 |  | 16,807,000
Avalanche International Corp And Alzamend [Member] | Warrants and Common Stock [Member] |  |  |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Balance at January 1, 2021 |  |  | 6,139,000 |  |
Investment in convertible promissory notes of AVLP |  |  |  |  |
Investment in convertible promissory note of Alzamend |  |  |  |  |
Investment in promissory note of Ault & Company |  |  |  |  |
Investment in common stock of AVLP and Alzamend |  |  | 14,093,000 |  |
Investment in warrants of Alzamend |  |  | 954,000 |  |
Short-term advance in Alzamend |  |  |  |  |
Fair value of warrants issued by AVLP |  |  | 2,240,000 |  |
Unrealized loss in warrants of AVLP |  |  | (2,924,000) |  |
Unrealized gain in warrants of Alzamend |  |  | 8,612,000 |  |
Unrealized gain in common stock of AVLP and Alzamend |  |  | 31,241,000 |  |
Accretion of discount |  |  |  |  |
Accrued interest |  |  |  |  |
Balance at June 30, 2021 | 60,355,000 |  | 60,355,000 |  | 6,139,000
Avalanche International Corp And Alzamend [Member] | Convertible Promissory Note [Member] |  |  |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Balance at January 1, 2021 |  |  | 10,668,000 |  |
Investment in convertible promissory notes of AVLP |  |  | 1,540,000 |  |
Investment in convertible promissory note of Alzamend |  |  | (50,000) |  |
Investment in promissory note of Ault & Company |  |  | 2,500,000 |  |
Short-term advance in Alzamend |  |  | (750,000) |  |
Accretion of discount |  |  | 4,000 |  |
Accrued interest |  |  | 1,000 |  |
Balance at June 30, 2021 | $ 13,913,000 |  | $ 13,913,000 |  | $ 10,668,000

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