Balance Sheet (Parentheticals) - Limited Partner [Member] - shares	Sep. 30, 2021	Dec. 31, 2020
Limited Members, units authorized	10,000,000	10,000,000
Limited Members, units issued	1,678,443.2	1,738,006
Limited Members, units outstanding	1,678,443.2	1,738,006

The number of limited partner units authorized to be issued.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

Name:	us-gaap_LimitedPartnersCapitalAccountUnitsAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant