XML 14 R3.htm IDEA: XBRL DOCUMENT v3.20.2
Balance Sheet (Parentheticals) - Limited Partner [Member] - shares
Sep. 30, 2020
Dec. 31, 2019
Limited Partners, units authorized 24,000 24,000
Limited Partners, units issued 18,791 18,791
Limited Partners, units outstanding 18,791 18,791