Real Estate Investments (Tables)

12 Months Ended

Dec. 31, 2021

Real Estate [Abstract]

Property, Plant and Equipment [Table Text Block]

properties not held for sale

Property	Land		Buildings		Total		Accumulated Depreciation
Biomat USA, Wichita, KS	$	507,489	$	1,277,436	$	1,784,925	$	861,997
Cellular Connection, Bluffton, IN		344,008		836,108		1,180,116		486,696
Best Buy, Eau Claire, WI		803,535		2,158,403		2,961,938		923,330
Fresenius Medical Center, Chicago, IL		464,400		665,142		1,129,542		186,230
Zales, Enid, OK		440,000		903,630		1,343,630		245,479
	$	2,559,432	$	5,840,719	$	8,400,151	$	2,703,732

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

acquired lease intangibles not held for sale

		2021				2020
		Cost		Accumulated Amortization		Cost		Accumulated Amortization
In-Place Lease Intangibles    (weighted average life of 43 and 55 months, respectively)	$	502,569	$	321,955	$	735,546	$	382,390
Above-Market Lease Intangibles    (weighted average life of 34 and 46 months, respectively)		72,606		51,138		72,606		43,562
Acquired Intangible Lease Assets	$	575,175	$	373,093	$	808,152	$	425,952
Acquired Below-Market Lease Intangibles    (weighted average life of 0 and 57 months, respectively)	$	0	$	0	$	283,495	$	142,988

Finite-Lived Intangible Assets Amortization Expense [Table Text Block]

estimated amortization

	Amortization Expense for In-Place Lease Intangibles		Decrease to Rental Income for Above-Market Leases		Increase to Rental Income for Below-Market Leases
2022	$	57,072	$	7,576	$	0
2023		39,404		7,576		0
2024		34,594		6,316		0
2025		18,620		0		0
2026		18,620		0		0
	$	168,310	$	21,468	$	0

Schedule of Future Minimum Rent

minimum future rent

2022	$	538,229
2023		283,350
2024		244,622
2025		150,591
2026		153,429
Thereafter		93,372
	$	1,463,593