Significant Accounting Policies - Schedule of Marketable Securities (Details) - USD ($) |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| Level 1 [Member] | ||
| Marketable securities | ||
| Level 2 [Member] | ||
| Marketable securities | 4,477,525 | 5,272,998 |
| Level 3 [Member] | ||
| Marketable securities |
| X | ||||||||||
- Definition Amount of investment in marketable security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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