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Acquisition (Narrative) (Details) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 26, 2018 | Feb. 21, 2018 | Mar. 31, 2018 | Mar. 31, 2017
Business Acquisition [Line Items] |  |  |  |
Aggregate cash consideration |  |  | $ 516,918 |
Impairment charge |  |  | 11,480,491 |
Value of equity consideration issued for acquisition |  |  | $ 8,480,000 |
Prive Technologies, Inc. [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity consideration issued for acquisition, number of shares |  | 1,000,000 |  |
Aggregate cash consideration |  | $ 11,000,000 |  |
Common stock shares held in escrow |  |  | 200,000 |
Common stock escrow value |  |  | $ 10,000,000 |
Impairment charge |  |  | $ 10,678,000 |
Prive Technologies, Inc. [Member] | Michael Ho [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of acquired entity |  |  | 24.80% |
Prive Technologies, Inc. [Member] | Bryan Pascual [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of acquired entity |  |  | 18.40% |
Prive Technologies, Inc. [Member] | Series B Preferred Shareholders [Member] | Michael Ho [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of acquired entity |  |  | 10.70% |
Prive Technologies, Inc. [Member] | Series B Preferred Shareholders [Member] | Bryan Pascual [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of acquired entity |  |  | 5.70% |
Miners [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity consideration issued for acquisition, number of shares |  | 800,000 |  |
Aggregate cash consideration |  | $ 11,000,000 |  |
Net purchase price |  | $ 22,400,000 |  |
Business acquisition share price |  | $ 10.60 |  |
Common stock shares held in escrow |  | 200,000 |  |
Blockchain Mining Supply & Services Ltd [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate cash consideration |  | $ 8,500,000 |  |
Impairment charge |  |  | $ 407,000 |
Purchase price on closing |  | 7,000,000 |  |
Remainder of purchase price |  | $ 1,500,000 |  |
Logical Brokerage Corp [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Aggregate cash consideration | $ 100,000 |  |  |
Net purchase price | $ 600,000 |  |  |
Percentage of acquired entity |  |  | 92.50% |
Effective tax rate | 25.60% |  |  |

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