Major Tenants (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]

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

Major Tenants

Tenants		2017		2016
Red Robin West, Inc.	$	341,250	$	341,250
Staples the Office Superstore East, Inc.		308,315		308,315
Dollar Tree / Family Dollar Group		208,617		206,409
Sterling Jewelers Inc.		203,946		191,328
Bio-Medical Applications of Ohio, Inc.		169,045		166,939
KinderCare Learning Centers LLC		0		161,684
Aggregate rental income of major tenants	$	1,231,173	$	1,375,925
Aggregate rental income of major tenants as a percentage of total rental income		91%		100%