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Investment in Equity Method Investees (Details Textual) ₪ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2018 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2018 USD ($) | Aug. 31, 2019 ILS (₪) | Aug. 31, 2019 USD ($) | Aug. 12, 2019 ILS (₪) | Aug. 12, 2019 USD ($) | Sep. 30, 2018
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Outstanding balance, including accrued interest | $ 100 |  | $ 100,000 |  |  |  |  |  |
Net book value of investments |  | $ 400,000 | $ 400,000 |  |  |  |  |  |
Shoreditch [Member] |  |  |  |  |  |  |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Equity interest in joint venture, percentage |  | 77.00% | 77.00% |  |  |  |  |  |
Net book value of investments |  |  |  |  |  |  |  |  |
Contributed Amount |  | 1,500 |  |  |  |  |  |  |
GEUK [Member] |  |  |  |  |  |  |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Contributed Amount |  |  | 9,500 |  |  |  |  |  |
EGC [Member] |  |  |  |  |  |  |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Loan amount |  |  |  | $ 200,000 |  |  |  |  |
Annual interest rate |  |  |  | 2.00% |  |  |  |  |
Due date |  |  |  | Sep. 17, 2023 |  |  |  |  |
Outstanding balance, including accrued interest |  |  | 200,000 |  |  |  |  |  |
New Atid [Member] |  |  |  |  |  |  |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Equity interest in joint venture, percentage |  |  |  |  |  |  |  |  | 37.50%
Notes Receivable, Related Parties |  | 200,000 | 200,000 |  |  |  |  |  |
Net book value of investments |  | $ 200,000 | $ 200,000 |  |  |  |  |  |
New Atid [Member] | Funding Agreement [Member] |  |  |  |  |  |  |  |  |
Investment in Shoreditch Energy Limited (Textual) |  |  |  |  |  |  |  |  |
Agreed to loan amount |  |  |  |  |  |  | ₪ 5.1 | $ 1,500,000 |
Commitment to loan amount |  |  |  |  |  |  | ₪ 1.9 | $ 500,000 |
Additional Loan Amount |  |  |  |  | ₪ 0.8 | $ 200,000 |  |  |
Annual interest rate |  |  |  |  | 5.50% | 5.50% |  |  |

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