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Investment in Shoreditch Energy Limited (Details Textual) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 17, 2018 | Aug. 31, 2018 | Sep. 30, 2018
Investment in Shoreditch Energy Limited (Textual) |  |  |
Description of joint venture agreement |  | The parties confirmed that the relevant conditions described in the JV Agreement were satisfied, triggering additional funding obligations, albeit at a lower level than in the JV Agreement due to the revised budgets and forecasts. In September 2018, the Company contributed $0.7 million to Shoreditch, which increased GEUK's total contribution to $4.7 million as of September 30, 2018. In January 2019, GEUK is obligated to contribute an additional £0.5 million ($0.7 million at September 30, 2018) and EGC is obligated to contribute £0.4 million ($0.5 million at September 30, 2018), to Shoreditch in January 2019. In connection with the revised contributions and obligations, the GEUK's ownership of Shoreditch increased from 65% to 67% and EGC's ownership reduced from 35% to 33% as of September 30, 2018. |
Outstanding balance, including accrued interest |  | $ 0.1 |
Shoreditch [Member] |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |
Net book value of investments |  |  | $ 2.0
EGC [Member] |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |
Loan amount | $ 0.1 |  |
Annual interest rate | 2.00% |  |
Due date | Sep. 17, 2023 |  |
Outstanding balance, including accrued interest |  |  | $ 0.1

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