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Real Estate and Intangible Assets - Carrying Value of Lease Intangibles and Accumulated Amortization for Each Intangible Asset or Liability Class (Detail) - USD ($) | Sep. 30, 2015 | Dec. 31, 2014
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Finite-Lived Intangible Assets [Line Items] |  |
Below-market lease values, gross | $ (371,707) | $ (371,707)
Below-market lease values, accumulated (amortization) accretion | 322,518 | 162,194
Above-Market Lease Values [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 65,203 | 65,203
Finite-lived intangible asset, accumulated (amortization) accretion | (51,587) | (9,027)
Above (Below)-Market Leases [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets (liability) gross | (306,504) | (306,504)
Finite-lived intangible asset, accumulated (amortization) accretion | 270,931 | 153,167
In-place Leases [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 1,385,378 | 869,207
Finite-lived intangible asset, accumulated (amortization) accretion | (645,647) | (263,428)
Leasing Commissions [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 701,502 | 357,210
Finite-lived intangible asset, accumulated (amortization) accretion | (179,153) | (80,617)
Tenant Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 886,743 | 501,670
Finite-lived intangible asset, accumulated (amortization) accretion | (217,259) | (66,467)
Lease Intangibles [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 2,973,623 | 1,728,087
Finite-lived intangible asset, accumulated (amortization) accretion | $ (1,042,059) | $ (410,512)

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- Definition Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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