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Investment in Joint Venture (Investee Losses in Excess of Investment) (Details 2) - Enfission LLC [Member]	12 Months Ended
	Dec. 31, 2018 USD ($)
Net sales and revenue	$ 0
Research and development costs	6,600,000
Administrative expenses	1,100,000
Total operating loss	7,700,000
Loss from operations	7,700,000
Net loss	$ 7,700,000

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