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Summary of Significant Accounting Policies (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Graham Alternative Investment Ltd. [Abstract]      
Percentage of ownership interest 100.00%    
Cash and Cash Equivalents [Abstract]      
Cash and cash equivalents $ 0 $ 0 $ 0
Graham Alternative Investment Trading LLC [Member]      
Schedule of Equity Method Investments [Abstract]      
Ownership percentage 46.31% 46.14%