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OTHER EXPENSE (INCOME) (Details Narrative) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Other expense | $ 36 |  |  |  | $ 832
Other income |  |  | $ 449 | $ 1,307 |
PPP Loan [Member] |  |  |  |  |
Gain on extinguishment of debt |  | $ 1,400 |  | $ 1,400 |
CleanSpark [Member] | Common Stock [Member] |  |  |  |  |
Unrealized mark to market gain |  |  | $ 384 |  |
Unrealized mark to market loss |  |  |  |  | $ 759

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