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ORGANIZATION AND BUSINESS (Details)
 1 Months Ended 3 Months Ended
Jun. 02, 2010
USD ($)
$ / shares
shares
Mar. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
$ / shares
Mar. 31, 2021
$ / shares
Dec. 31, 2020
$ / shares
Jun. 11, 2020
shares
Apr. 20, 2020
shares
May 31, 2010
shares
ORGANIZATION AND BUSINESS                
Number of successive valuation days   30 days            
Average daily percentage change in the price of the Benchmark Futures Contract considered   10.00%            
Units issued during period to authorized purchasers through distributors   50,000            
Transaction fee | $   $ 350            
Initially registered units of entity with sec               50,000,000
Net asset value per unit | $ / shares $ 50.00 $ 29.84 $ 20.87 $ 15.84 $ 12.91      
Initial stock units issued 200,000              
Initial units value issued | $ $ 10,000,000              
Total units registered of entity   250,000,000       150,000,000 50,000,000  
Number of units per baskets   50,000            
Number of Contracts   2,664