Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Reconciliation of Level 3 Assets (Details)

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Summary of Significant Accounting Policies - Schedule of Reconciliation of Level 3 Assets (Details) - Level 3 [Member]
12 Months Ended
Dec. 31, 2018
USD ($)
Beginning Balance as of January 1, 2018 $ 80,000
Unrealized gain on (level 3) securities 140,000
Ending Balance as of December 31, 2018 $ 220,000