Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail)

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Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Class of Stock [Line Items]    
Beginning balance, Par Value $ 48,511,992  
Net income 20,918 47,516
Distributions (587,724)  
Ending balance, Par Value 47,945,186  
Common Stock [Member]
   
Class of Stock [Line Items]    
Beginning balance, Shares 6,530,264  
Beginning balance, Par Value 6,530  
Net income     
Distributions     
Ending balance, Shares 6,530,264  
Ending balance, Par Value 6,530  
Additional Paid-in Capital [Member]
   
Class of Stock [Line Items]    
Beginning balance, Par Value 51,326,262  
Net income     
Distributions     
Ending balance, Par Value 51,326,262  
Retained Earnings (Distributions in Excess of Earnings) [Member]
   
Class of Stock [Line Items]    
Beginning balance, Par Value (2,820,800)  
Net income 20,918  
Distributions (587,724)  
Ending balance, Par Value $ (3,387,606)