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           Real Estate and Intangible Assets - Carrying Value of Intangible Assets and Accumulated Amortization (Detail) (USD $) 
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           Sep. 30, 2014 
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           Dec. 31, 2013 
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| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | $ 1,218,891 | $ 637,473 | 
| Accumulated Amortization | (457,713) | (326,409) | 
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           In-place Leases [Member] 
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| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 664,603 | 397,728 | 
| Accumulated Amortization | (321,993) | (241,697) | 
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           Leasing Commissions [Member] 
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| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 303,917 | 146,558 | 
| Accumulated Amortization | (66,866) | (34,727) | 
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           Customer Relationships [Member] 
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| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 250,371 | 93,187 | 
| Accumulated Amortization | $ (68,854) | $ (49,985) | 
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- Definition 
          Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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