Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share of Common Stock - Schedule of Computation of Basic and Diluted Earnings Per Share of Common Stock (Detail)

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Earnings per Share of Common Stock - Schedule of Computation of Basic and Diluted Earnings Per Share of Common Stock (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2013
Numerator:    
Net loss attributable to common stockholders $ (4,971,643) $ (4,971,643)
Less: Dividends paid on unvested shares of restricted common stock      
Undistributed earnings attributable to unvested restricted common stock      
Net loss attributable to common stockholders $ (4,971,643) $ (4,971,643)
Denominator:    
Weighted-average number of shares of common stock-basic 15,439,311 15,439,311
Unvested shares of restricted common stock      
Weighted-average number of shares of common stock-diluted 15,439,311 15,439,311
Loss per share attributable to common stockholders-basic and diluted $ (0.32) $ (0.32)