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Organization (Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Jan. 19, 1995
Jun. 30, 1993
Limited Partner [Member]            
Organization (Details) [Line Items]            
Capital Units, Value           $ 1,000
Limited Partners' Capital Account, Units Outstanding (in Shares) 19,908 20,015 20,134.32 20,163.04 24,000 1,500
Limited Partners' Contributed Capital         $ 24,000,000 $ 1,500,000
General Partner [Member]            
Organization (Details) [Line Items]            
General Partners' Contributed Capital         $ 1,000