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Real Estate Investments (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Nov. 14, 2017
Apr. 01, 2017
Mar. 01, 2017
Jun. 30, 2017
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Real Estate Investments (Details) [Line Items]                    
Depreciation, Nonproduction                 $ 416,388 $ 424,895
Distributions Per Limited Partnership Unit Outstanding, Basic (in Dollars per share)         $ 10.51 $ 13.18        
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property                 0 1,043,829
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation                 3,705,840  
Leases, Acquired-in-Place [Member]                    
Real Estate Investments (Details) [Line Items]                    
Amortization of Intangible Assets                 54,096 335,527
Off Market Unfavorable Lease                    
Real Estate Investments (Details) [Line Items]                    
Amortization of above and below Market Leases                 19,100 $ 19,100
KinderCare Andover MN                    
Real Estate Investments (Details) [Line Items]                    
AverageLeaseTerm     In March 2017, the Partnership entered into an agreement with the tenant of the KinderCare daycare center in Andover, Minnesota to extend the lease term five years to end on June 30, 2022.              
Payments for Tenant Improvements     $ 30,000              
Allowance for Notes, Loans and Financing Receivable, Current   $ 36,362                
Disposal Date Nov. 14, 2017                  
Proceeds from Sale of Real Estate $ 1,696,401                  
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 1,043,829                  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Cost of Investment in Real Estate Sold 1,294,207                  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation $ 641,635                  
Gander Mountain Champaign IL                    
Real Estate Investments (Details) [Line Items]                    
Amortization of Intangible Assets       $ 270,097            
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation                 230,274  
Fresenius Medical Center Shreveport LA                    
Real Estate Investments (Details) [Line Items]                    
AverageLeaseTerm   In April 2017, the Partnership entered into an agreement with the tenant of the Fresenius Medical Center in Shreveport, Louisiana to extend the lease term nine years to end on June 30, 2027.                
Payments for Tenant Improvements   $ 46,750                
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation                 523,033  
Jared Jewelry Auburn Hills MI                    
Real Estate Investments (Details) [Line Items]                    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation                 $ 661,647  
Revenue from Contract with Customer, Excluding Assessed Tax             $ 105,560 $ 124,049