Real Estate Investments -	9 Months Ended
Sep. 30, 2020
Real Estate [Abstract]
Real Estate Disclosure [Text Block]	(4) Real Estate Investments – In July 2018, the Company entered into an agreement with the tenant of the Best Buy store in Lake Geneva, Wisconsin to extend the lease term five years to end on March 31, 2024. As part of the agreement, the annual rent decreased from $153,826 to $133,316 effective February 1, 2019. In addition, beginning on February 1, 2019, the tenant received free rent for one month that equaled $11,110. The Company owned a 35% interest in a Dick’s Sporting Goods store in Fredericksburg, Virginia. The remaining interests in the property were owned by three affiliates of the Company. On January 31, 2019, the lease term ended, and the tenant returned possession of the property to the owners. While the property was vacant, the Company was responsible for its 35% share of real estate taxes and other costs associated with maintaining the property. The owners listed the property for lease with a real estate broker in the Fredericksburg area. The annual rent from this property represented approximately 21% of the total annual rent of the Company’s property portfolio. The loss of rent and increased expenses related to this property decreased the Company’s cash flow. Consequently, beginning with the first quarter of 2019, the Company reduced its regular quarterly cash distribution rate from $12.66 per Unit to $10.12 per Unit. Based on its long-lived asset valuation analysis, the Company determined the former Dick’s Sporting Goods store was impaired. As a result, in the first quarter of 2019, the Company recognized real estate impairment of $792,845 to decrease the carrying value to the estimated fair value of $1,260,000. The charge was recorded against the cost of the land and building. In October 2019, after marketing the property for lease for many months, the Company decided to sell its 35% interest in the former Dick’s Sporting Goods store. In the third quarter of 2019, as a result of deciding to sell the property, the Company recognized an additional real estate impairment of $387,578 to decrease the carrying value to the estimated fair value of $857,500. The charges were recorded against the cost of the land and building. In November 2019, the Company entered into an agreement to sell the property to an unrelated third party. On December 27, 2019, the sale closed with the Company receiving net proceeds of $859,807, which resulted in a net gain of $2,307. At the time of sale, the cost and related accumulated depreciation was $1,795,363 and $937,863, respectively. In June 2019, the Company entered into an agreement with the tenant of the Tractor Supply Company store in Grand Forks, North Dakota to extend the lease term ten years to end on November 30, 2030. The annual rent remained the same with a 4.0% increase scheduled to occur after five years. As part of the agreement, the Company paid a tenant improvement allowance of $30,000 that was capitalized. In June 2019, the Company reached an agreement to sell its 50% interest in the Tractor Supply Company store to an unrelated third party. On August 1, 2019, the sale closed with the Company receiving net proceeds of $1,738,496, which resulted in a net gain of $885,311. At the time of sale, the cost and related accumulated depreciation was $1,433,934 and $580,749, respectively. In June 2019, the Company entered into an agreement to sell the Applebee’s restaurant in Fishers, Indiana to an unrelated third party. On September 27, 2019, the sale closed with the Company receiving net proceeds of $2,887,288, which resulted in a net gain of $804,805. At the time of sale, the cost and related accumulated depreciation was $3,002,553 and $920,070, respectively. The Company owns a 45% interest in an Advance Auto Parts store in Middletown, Ohio. The remaining interest in the property is owned by an affiliate of the Company. On July 31, 2019, the lease term ended, and the tenant returned possession of the property to the owners. While the property is vacant, the Company is responsible for its 45% share of real estate taxes and other costs associated with maintaining the property. The owners have listed the property for sale or lease with a real estate broker in the Middletown area. The annual rent from this property represented approximately 6% of the total annual rent of the Company’s property portfolio. The loss of rent and increased expenses related to this property will decrease the Company’s cash flow. However, at this time, the Company does not anticipate the need to further reduce its regular quarterly cash distribution rate. Based on its long-lived asset valuation analysis, the Company determined the Advance Auto store was impaired. As a result, in the second quarter of 2019, a charge to operations for real estate impairment of $300,247 was recognized, which was the difference between the carrying value at June 30, 2019 of $446,497 and the estimated fair value of $146,250. The charge was recorded against the cost of the land and building. In October 2019, the Company entered into an agreement to sell the Fresenius Medical Center in Grove City, Ohio to an unrelated third party. On December 11, 2019, the sale closed with the Company receiving net proceeds of $2,598,639, which resulted in a net gain of $795,214. At the time of sale, the cost and related accumulated depreciation and amortization was $2,375,000 and $571,575, respectively. On January 17, 2020, the Company sold its 27% interest in the PetSmart store in Gonzales, Louisiana to AEI Income & Growth Fund 25 LLC, an affiliate of the Company. The purchase price of the property interest was based upon the property’s fair market value as determined by an independent, third-party, commercial property appraiser. The Company received net proceeds of $823,558, which resulted in a net gain of $251,516. At the time of sale, the cost and related accumulated depreciation and amortization was $842,400 and $270,358, respectively. At December 31, 2019, the property was classified as Real Estate Held for Sale with a carrying value of $572,042. In October 2020, the Company entered into an agreement to sell its 45% interest in the Fresenius Medical Center in Shreveport, Louisiana to an unrelated third party. The sale is subject to contingencies and may not be completed. If the sale is completed, the Company expects to receive net proceeds of approximately $1,200,600, which will result in a net gain of approximately $555,700. At September 30, 2020, the property was classified as Real Estate Held for Sale with a carrying value of $644,885.

(4) Real Estate Investments –

In July 2018, the Company entered into an agreement with the tenant of the Best Buy store in Lake Geneva, Wisconsin to extend the lease term five years to end on March 31, 2024. As part of the agreement, the annual rent decreased from $153,826 to $133,316 effective February 1, 2019. In addition, beginning on February 1, 2019, the tenant received free rent for one month that equaled $11,110.

The Company owned a 35% interest in a Dick’s Sporting Goods store in Fredericksburg, Virginia. The remaining interests in the property were owned by three affiliates of the Company. On January 31, 2019, the lease term ended, and the tenant returned possession of the property to the owners. While the property was vacant, the Company was responsible for its 35% share of real estate taxes and other costs associated with maintaining the property. The owners listed the property for lease with a real estate broker in the Fredericksburg area. The annual rent from this property represented approximately 21% of the total annual rent of the Company’s property portfolio. The loss of rent and increased expenses related to this property decreased the Company’s cash flow. Consequently, beginning with the first quarter of 2019, the Company reduced its regular quarterly cash distribution rate from $12.66 per Unit to $10.12 per Unit.

Based on its long-lived asset valuation analysis, the Company determined the former Dick’s Sporting Goods store was impaired. As a result, in the first quarter of 2019, the Company recognized real estate impairment of $792,845 to decrease the carrying value to the estimated fair value of $1,260,000. The charge was recorded against the cost of the land and building.

In October 2019, after marketing the property for lease for many months, the Company decided to sell its 35% interest in the former Dick’s Sporting Goods store. In the third quarter of 2019, as a result of deciding to sell the property, the Company recognized an additional real estate impairment of $387,578 to decrease the carrying value to the estimated fair value of $857,500. The charges were recorded against the cost of the land and building. In November 2019, the Company entered into an agreement to sell the property to an unrelated third party. On December 27, 2019, the sale closed with the Company receiving net proceeds of $859,807, which resulted in a net gain of $2,307. At the time of sale, the cost and related accumulated depreciation was $1,795,363 and $937,863, respectively.

In June 2019, the Company entered into an agreement with the tenant of the Tractor Supply Company store in Grand Forks, North Dakota to extend the lease term ten years to end on November 30, 2030. The annual rent remained the same with a 4.0% increase scheduled to occur after five years. As part of the agreement, the Company paid a tenant improvement allowance of $30,000 that was capitalized.

In June 2019, the Company reached an agreement to sell its 50% interest in the Tractor Supply Company store to an unrelated third party. On August 1, 2019, the sale closed with the Company receiving net proceeds of $1,738,496, which resulted in a net gain of $885,311. At the time of sale, the cost and related accumulated depreciation was $1,433,934 and $580,749, respectively.

In June 2019, the Company entered into an agreement to sell the Applebee’s restaurant in Fishers, Indiana to an unrelated third party. On September 27, 2019, the sale closed with the Company receiving net proceeds of $2,887,288, which resulted in a net gain of $804,805. At the time of sale, the cost and related accumulated depreciation was $3,002,553 and $920,070, respectively.

The Company owns a 45% interest in an Advance Auto Parts store in Middletown, Ohio. The remaining interest in the property is owned by an affiliate of the Company. On July 31, 2019, the lease term ended, and the tenant returned possession of the property to the owners. While the property is vacant, the Company is responsible for its 45% share of real estate taxes and other costs associated with maintaining the property. The owners have listed the property for sale or lease with a real estate broker in the Middletown area. The annual rent from this property represented approximately 6% of the total annual rent of the Company’s property portfolio. The loss of rent and increased expenses related to this property will decrease the Company’s cash flow. However, at this time, the Company does not anticipate the need to further reduce its regular quarterly cash distribution rate.

Based on its long-lived asset valuation analysis, the Company determined the Advance Auto store was impaired. As a result, in the second quarter of 2019, a charge to operations for real estate impairment of $300,247 was recognized, which was the difference between the carrying value at June 30, 2019 of $446,497 and the estimated fair value of $146,250. The charge was recorded against the cost of the land and building.

In October 2019, the Company entered into an agreement to sell the Fresenius Medical Center in Grove City, Ohio to an unrelated third party. On December 11, 2019, the sale closed with the Company receiving net proceeds of $2,598,639, which resulted in a net gain of $795,214. At the time of sale, the cost and related accumulated depreciation and amortization was $2,375,000 and $571,575, respectively.

On January 17, 2020, the Company sold its 27% interest in the PetSmart store in Gonzales, Louisiana to AEI Income & Growth Fund 25 LLC, an affiliate of the Company. The purchase price of the property interest was based upon the property’s fair market value as determined by an independent, third-party, commercial property appraiser. The Company received net proceeds of $823,558, which resulted in a net gain of $251,516. At the time of sale, the cost and related accumulated depreciation and amortization was $842,400 and $270,358, respectively. At December 31, 2019, the property was classified as Real Estate Held for Sale with a carrying value of $572,042.

In October 2020, the Company entered into an agreement to sell its 45% interest in the Fresenius Medical Center in Shreveport, Louisiana to an unrelated third party. The sale is subject to contingencies and may not be completed. If the sale is completed, the Company expects to receive net proceeds of approximately $1,200,600, which will result in a net gain of approximately $555,700. At September 30, 2020, the property was classified as Real Estate Held for Sale with a carrying value of $644,885.