Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - shares	Mar. 31, 2022	Dec. 31, 2021
Limited partner's equity, units authorized (in shares)	8,000,000	8,000,000
Limited partner's equity, units issued (in shares)	5,334,473	5,334,473
Limited partner's equity, units outstanding (in shares)	5,334,473	5,334,473

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 https://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

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