Members' Capital (Distributions to Other Members) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Distributions	$ 2,052	$ 2,054
Weighted average number of Units outstanding	2,565,749	2,567,041
Other Members [Member]
Distributions	$ 2,052	$ 2,054
Weighted average number of Units outstanding	2,565,749	2,567,041
Weighted average distributions per Unit	$ 0.80	$ 0.80