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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment [Line Items] |  |
Allowance for doubtful accounts | $ 69 | $ 77
Short term investments |  | 936
Warrants |  | 531
CleanSpark [Member] | Fair Value Inputs Level 1 [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Short term investments |  | 936
CleanSpark [Member] | Fair Value Inputs Level 3 [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Warrants |  | $ 531
Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Finite life intangible assets amortization period | 4 years |
Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Finite life intangible assets amortization period | 10 years |
Building [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 25 years |
Machinery and Equipment [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |
Machinery and Equipment [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 15 years |
Computer Hardware And Software [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 3 years |
Computer Hardware And Software [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |
Furniture and Fixtures [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |
Furniture and Fixtures [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 7 years |

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