Represents the ratio of loans to assets ratio during the period.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	na
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	debit
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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 50
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Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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DEBT - Schedule of Debt (Q2) (Details) - USD ($)	6 Months Ended	12 Months Ended
DEBT - Schedule of Debt (Q2) (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Short Term Debt [LineItems]
Face Value	$ 117,132,085	$ 134,022,937
Deferred financing costs, net	$ (2,099,104)	$ (2,315,629)
Loans To Assets Ratio (as a percent)	60.00%	60.00%
Long-term Debt	$ 115,032,981	$ 131,707,308
Accredo/Walgreen properties
Short Term Debt [LineItems]
Face Value	$ 6,925,661	6,996,469
Contractual Interest Rate	3.95%
Effective Interest Rate	3.95%
Dana property
Short Term Debt [LineItems]
Face Value	$ 4,592,001	4,632,398
Contractual Interest Rate	4.56%
Effective Interest Rate	4.56%
Six Dollar General properties
Short Term Debt [LineItems]
Face Value	$ 3,852,196	3,885,334
Contractual Interest Rate	4.69%
Effective Interest Rate	4.69%
Wyndham property
Short Term Debt [LineItems]
Face Value	$ 5,769,600	5,820,600
Effective Interest Rate	4.34%
Williams Sonoma property
Short Term Debt [LineItems]
Face Value	$ 4,573,200	4,615,800
Effective Interest Rate	4.05%
Omnicare property
Short Term Debt [LineItems]
Face Value	$ 4,311,660	4,349,963
Contractual Interest Rate	4.36%
Effective Interest Rate	4.36%
Harley property
Short Term Debt [LineItems]
Face Value	$ 6,808,386	6,868,254
Contractual Interest Rate	4.25%
Effective Interest Rate	4.25%
Northrop Grumman property
Short Term Debt [LineItems]
Face Value	$ 5,738,558	5,809,367
Contractual Interest Rate	4.40%
Effective Interest Rate	4.40%
EMCOR property
Short Term Debt [LineItems]
Face Value	$ 2,887,126	2,911,577
Contractual Interest Rate	4.35%
Effective Interest Rate	4.35%
exp US Services property
Short Term Debt [LineItems]
Face Value	$ 3,416,049	3,446,493
Effective Interest Rate	4.25%
Husqvarna property
Short Term Debt [LineItems]
Face Value	$ 6,379,182	6,379,182
Effective Interest Rate	4.60%
AvAir property
Short Term Debt [LineItems]
Face Value	$ 14,575,000	14,575,000
Effective Interest Rate	4.84%
3M property
Short Term Debt [LineItems]
Face Value	$ 8,350,000	8,360,000
Effective Interest Rate	5.09%
Cummins property
Short Term Debt [LineItems]
Face Value	$ 8,519,800	8,530,000
Effective Interest Rate	5.16%
24 Hour Fitness
Short Term Debt [LineItems]
Face Value	$ 6,333,666	8,900,000
Contractual Interest Rate	4.64%
Effective Interest Rate	4.64%
Texas Health
Short Term Debt [LineItems]
Face Value	$ 0	$ 4,842,500	$ 0
Effective Interest Rate	6.56%	6.56%
Bon Secours
Short Term Debt [LineItems]
Face Value	$ 5,250,000	$ 5,250,000	0
Contractual Interest Rate	5.41%	5.41%
Effective Interest Rate	5.41%	5.41%
Costco
Short Term Debt [LineItems]
Face Value	$ 18,850,000	$ 18,850,000	0
Contractual Interest Rate	4.85%	4.85%
Effective Interest Rate	4.85%	4.85%
Husqvarna
Short Term Debt [LineItems]
Face Value		$ 6,379,182	0
Contractual Interest Rate	4.60%	4.60%
Effective Interest Rate		4.60%
AvAir
Short Term Debt [LineItems]
Face Value		$ 14,575,000	12,000,000
Contractual Interest Rate	4.84%	4.84%
Effective Interest Rate		4.84%
Treasury Bill Index \| exp US Services property
Short Term Debt [LineItems]
Contractual Interest Rate	3.25%
Minimum \| Treasury Bill Index \| AvAir
Short Term Debt [LineItems]
Contractual Interest Rate	4.60%	4.60%
Maximum \| Treasury Bill Index \| Husqvarna
Short Term Debt [LineItems]
Contractual Interest Rate	2.45%
Maximum \| Treasury Bill Index \| AvAir
Short Term Debt [LineItems]
Contractual Interest Rate	2.45%	2.45%
Mortgages
Short Term Debt [LineItems]
Face Value	$ 117,132,085	$ 125,022,937	62,228,409
Deferred financing costs, net	(2,099,104)	(2,313,629)	(1,741,106)
Long-term Debt	$ 115,032,981	$ 122,709,308	$ 60,487,303