Annual report pursuant to Section 13 and 15(d)

Investment in Joint Venture (Investee Losses in Excess of Investment) (Details)

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Investment in Joint Venture (Investee Losses in Excess of Investment) (Details) - Enfission LLC [Member]
12 Months Ended
Dec. 31, 2018
USD ($)
Total contributions, Ownership Interest 50.00%
Total contributions, Carrying Amount $ 5,600,000
Less: Share of the loss in investment in Enfission (5,800,000)
Equity losses in excess of investment $ (200,000)