No definition available.

Name:	aei26_DistributionsPerUnitOfReturnOfCapital
Namespace Prefix:	aei26_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	aei26_MembersEquityDetailsLineItems
Namespace Prefix:	aei26_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of equity impact of cash distribution declared to unit-holder of limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerCashDistributionsDeclared
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

+ References

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average number of limited partnership units outstanding determined by relating the portion of time within a reporting period that limited partnership units have been outstanding to the total time in that period.

+ References

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

+ Details

Name:	us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_LimitedPartnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_GeneralPartnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Members' Equity (Details) - USD ($)	3 Months Ended		12 Months Ended
Members' Equity (Details) - USD ($)	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Members' Equity (Details) [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared	$ 94,432	$ 94,432
Limited Partner [Member]
Members' Equity (Details) [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared	$ 91,599	$ 91,599
Distribution Made to Limited Partner, Distributions Declared, Per Unit (in Dollars per share)	$ 0.05	$ 0.05	$ 0.0527	$ 0.0949
Weighted Average Limited Partnership Units Outstanding, Basic (in Shares)	1,738,006	1,738,006
DistributionsPerUnitOfReturnOfCapital (in Dollars per share)	$ 0.05	$ 0.05
General Partner [Member]
Members' Equity (Details) [Line Items]
Distribution Made to Limited Partner, Cash Distributions Declared	$ 2,833	$ 2,833