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Consolidated Statements of Financial Condition (Unaudited) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Assets    
Investment in Graham Alternative Investment Trading LLC, at fair value $ 27,020,001 $ 27,978,759
Redemptions receivable from Graham Alternative Investment Trading LLC 514,152 182,935
Total assets 27,534,153 28,161,694
Liabilities:    
Redemptions payable 514,152 182,935
Total liabilities 514,152 182,935
Members' capital:    
Members' capital 27,020,001 27,978,759
Total liabilities and members' capital 27,534,153 28,161,694
Class 0 Units [Member]    
Members' capital:    
Members' capital 16,486,750 16,801,362
Class 2 Units [Member]    
Members' capital:    
Members' capital $ 10,533,251 $ 11,177,397