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Organization (Details) - USD ($)
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Jan. 31, 1997
Apr. 14, 1995
Limited Partner [Member]                    
Organization (Details) [Line Items]                    
Capital Units, Value                   $ 1,000
Limited Partners' Capital Account, Units Outstanding (in Shares) 18,791 18,791.14 18,791.14 18,791 19,263.98 19,263.98 19,328.64 19,328.64 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