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Significant Accounting Policies - Summary of Fair Value Based Upon Level 1 and Level 2 Inputs (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Level 1 Inputs    
Summary of investments values based upon Level 1 and Level 2    
Value of Investment $ 92,376,955 $ 62,595,546
Level 2 Inputs    
Summary of investments values based upon Level 1 and Level 2    
Value of Investment $ 11,284,109 $ 14,652,589