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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of detailed information about financial instruments [abstract] |
Schedule of balances in foreign currencies | Balances in foreign currencies at December 31, 2017 are as follows:
| US dollars $ | British pounds £ | Euro €
Cash and cash equivalents | 1,948,573 |  | 21,755 |  | 19,372 |
Contract receivable | 3,800,000 |  | — |  | — |
Accounts payable | (777,271 | ) | (13,949 | ) | (1,100 | )
| 4,971,302 |  | 7,806 |  | 18,272 |

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