Major Tenants (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

Major Tenants

Tenants		2020		2019
Sterling Jewelers Inc.	$	309,506	$	327,995
Best Buy Stores, L.P.		282,241		282,241
Dollar Tree Stores, Inc.		130,277		130,277
Bio-Medical Applications of Louisiana, LLC		108,528		112,772
Tractor Supply Company		0		147,880
Aggregate rental income of major tenants	$	830,552	$	1,001,165
Aggregate rental income of major tenants as a percentage of total rental income		100%		100%