| 
           Real Estate and Intangible Assets - Carrying Value of Intangible Assets and Accumulated Amortization (Detail) (USD $) 
         | 
        
           Mar. 31, 2014 
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           Dec. 31, 2013 
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|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | $ 639,447 | $ 637,473 | 
| Accumulated Amortization | (354,877) | (326,409) | 
| 
           In-Place Leases [Member] 
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        ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 397,728 | 397,728 | 
| Accumulated Amortization | (260,098) | (241,697) | 
| 
           Leasing Commissions [Member] 
         | 
        ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 148,532 | 146,558 | 
| Accumulated Amortization | (42,409) | (34,727) | 
| 
           Customer Relationships [Member] 
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        ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Lease Intangibles | 93,187 | 93,187 | 
| Accumulated Amortization | $ (52,370) | $ (49,985) |