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Members' Equity (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Members' Equity (Details) [Line Items]                
Distribution Made to Limited Partner, Cash Distributions Declared $ 94,432 $ 94,432 $ 94,575 $ 94,432 $ 188,864 $ 189,007    
Limited Partner [Member]                
Members' Equity (Details) [Line Items]                
Distribution Made to Limited Partner, Cash Distributions Declared 91,599 91,599 91,600 91,599 $ 183,198 $ 183,199    
Distribution Made to Limited Partner, Distributions Declared, Per Unit         $ 0.11 $ 0.11 $ 0.0527 $ 0.0949
Weighted Average Limited Partnership Units Outstanding, Basic         1,738,006 1,738,006    
DistributionsPerUnitOfNetIncome         $ 0.02 $ 0.00    
DistributionsPerUnitOfReturnOfCapital         $ 0.09 $ 0.11    
General Partner [Member]                
Members' Equity (Details) [Line Items]                
Distribution Made to Limited Partner, Cash Distributions Declared $ 2,833 $ 2,833 $ 2,975 $ 2,833 $ 5,666 $ 5,808