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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) Number | Dec. 31, 2018 USD ($)
Property, Plant and Equipment [Line Items] |  |
Allowance for doubtful accounts | $ 77 | $ 123
Number of reporting units with goodwill | Number | 2 |
Aggregate number of reporting units | Number | 4 |
Impairment of goodwill | $ 2,969 |
Impairment charges | 83 | 1,350
Short term investments | 936 |
Warrants | 531 |
Fair Value Inputs Level 1 [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Short term investments | 936 |
Fair Value Inputs Level 3 [Member] |  |
Property, Plant and Equipment [Line Items] |  |
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 |
Technology Related Industry [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Impairment charges |  | 870
Customer Relationships [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Impairment charges |  | 377
Noncompete Agreements [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Impairment charges |  | $ 103
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 |
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 |

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