Statement of Financial Position [Abstract] Cash Cash, beginning of period Cash, end of period Land Buildings Acquired Intangible Lease Assets Real Estate Held for Investment, at cost Accumulated Depreciation and Amortization Real Estate Held for Investment, Net Total Assets Payable to AEI Fund Management, Inc. Distributions Payable Unearned Rent Total Current Liabilities Acquired Below-Market Lease Intangibles, Net Managing Members Limited Members – 10,000,000 Units authorized; 1,738,006 Units issued and outstanding as of 9/30/2018 and 12/31/2017, respectively Related Party [Axis] Limited Partner [Member] Limited Members, units authorized Limited Members, units issued Limited Members, units outstanding Balance (in Shares) Balance (in Shares) Limited Partners' Capital Account, Units Outstanding (in Shares) Total Members’ Equity Balance Balance Total Liabilities and Members’ Equity Income Statement [Abstract] Rental Income Depreciation and Amortization Total Expenses Operating Income Interest Income Net Income Net Income Limited Members Net Income per LLC Unit (in Dollars per share) Weighted Average Units Outstanding – Basic and Diluted (in Shares) Statement of Cash Flows [Abstract] Increase (Decrease) in Payable to AEI Fund Management, Inc. Increase (Decrease) in Unearned Rent Total Adjustments Net Cash Provided By (Used For) Operating Activities Investments in Real Estate Distributions Paid to Members Repurchase of LLC Units Net Cash Provided By (Used For) Financing Activities Net Increase (Decrease) in Cash Statement of Partners' Capital [Abstract] Distributions Declared Repurchase of LLC Units Partners' Capital Account, Redemptions Units Repurchased (in Shares) Partners' Capital Account, Units, Redeemed (in Shares) Managing Member [Member] Limited Member [Member] Disclosure Text Block [Abstract] Accounting Policies [Abstract] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Policy Text Block [Abstract] Real Estate [Abstract] Payables and Accruals [Abstract] Disclosure Text Block Supplement [Abstract] Fair Value Disclosures [Abstract] Current Assets: Real Estate Investments: Current Liabilities: Long-term Liabilities: Members’ Equity (Deficit): Expenses: LLC Administration – Affiliates LLC Administration and Property Management – Unrelated Parties Other Income: Net Income Allocated: Managing Members Cash Flows from Operating Activities: Adjustments to Reconcile Net Income To Net Cash Provided by Operating Activities: Depreciation and Amortization Cash Flows from Investing Activities: Cash Flows from Financing Activities: Basis of Accounting [Text Block] Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Real Estate Disclosure [Text Block] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Members' Equity Notes Disclosure [Text Block] Fair Value Disclosures [Text Block] Business Acquisition [Axis] Biomat USA Plasma Center Wichita KS Cellular Connection Bluffton IN Capital Units, Value Limited Partners' Contributed Capital General Partners' Contributed Capital Average Lease Term Revenue from Contract with Customer, Excluding Assessed Tax Cost of Property Repairs and Maintenance Payments for Lease Commissions Payments for Tenant Improvements Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared Distributions Per Limited Partnership Unit Outstanding, Basic (in Dollars per share) Weighted Average Limited Partnership Units Outstanding, Basic (in Shares) DistributionsPerUnitOfNetIncome (in Dollars per Item) DistributionsPerUnitOfReturnOfCapital (in Dollars per Item) SaleProceedsDistributionMadeToMemberOrLimitedPartner SaleProceedsDistributionMadetomLimitedMemberPerUnit Distribution Policy, Members or Limited Partners, Description Key Provisions of Operating or Partnership Agreement, Description New Accounting Pronouncement or Change in Accounting Principle, Description Description of New Accounting Pronouncements Not yet Adopted [Text Block] Related Party [Domain] Organization (Details) [Table] Organization (Details) [Line Items] Business Acquisition, Acquiree [Domain] Real Estate Investments (Details) [Table] Real Estate Investments (Details) [Line Items] Members' Equity (Details) [Table] Members' Equity (Details) [Line Items] Distribution of sales proceeds declared or paid to a common shareholder or unit-holder by LLC or LP. Biomat USA Plasma Center Wichita KS [Member] Cellular Connection Bluffton IN [Member] Fresenius Medical Center Chicago IL [Member] Limited Member [Member] A party to a limited liability company who has limited liability and is not active in the day-to-day operations of the company. Managing Member [Member] A party to a limited liability company who is also the managing partner, which means this person is active in the day-to-day operations of the partnership. Off Market Unfavorable Lease [Member] Sports Authority Wichita KS [Member] Document and Entity Information [Abstract] Current Fiscal Year End Date Entity Ex Transition Period Real Estate Investment Property, at Cost Assets Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Entity Common Stock, Shares Outstanding Amendment Description Other Depreciation and Amortization Entity Voluntary Filers Entity Filer Category Entity Well-known Seasoned Issuer Entity Small Business Trading Symbol Operating Income (Loss) Partners' Capital Entity Registrant Name Operating Expenses Entity Central Index Key Payments to Acquire Real Estate Partners' Capital Account, Distributions Real Estate Investment Property, Accumulated Depreciation Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Operating Activities Document Period End Date Entity Public Float Amendment Flag Payments of Capital Distribution Entity Shell Company Real Estate Investment Property, Net Payments for Repurchase of Redeemable Noncontrolling Interest Net Income (Loss) Allocated to General Partners Document Fiscal Year Focus Cash and Cash Equivalents, Period Increase (Decrease) Liabilities, Current Entity Emerging Growth Company Entity Current Reporting Status Document Type Document Fiscal Period Focus Liabilities and Equity Statement [Table] Statement [Line Items] Scenario [Axis]