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Consolidated Statements of Financial Condition (Unaudited) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Assets    
Investment in Graham Alternative Investment Trading LLC, at fair value $ 35,044,762 $ 37,181,465
Redemption receivable from Graham Alternative Investment Trading LLC 385,728 102,320
Total assets 35,430,490 37,283,785
Liabilities:    
Accrued redemptions 385,728 102,320
Total liabilities 385,728 102,320
Members' capital:    
Members' capital 35,044,762 37,181,465
Total liabilities and members' capital 35,430,490 37,283,785
Class 0 Units [Member]    
Members' capital:    
Members' capital 22,286,065 23,163,675
Class 2 Units [Member]    
Members' capital:    
Members' capital $ 12,758,697 $ 14,017,790