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Summary of Significant Accounting Policies - Computation of Basic and Diluted Income (Loss) Per Common Share (Detail) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accounting Policies [Abstract]                      
Net income (loss) $ (3,205,000) $ 6,604,000 $ (294,000) $ (3,366,000) $ (2,105,000) $ 2,601,000 $ 3,546,000 $ 4,320,000 $ (260,835) $ 8,361,755 $ 6,717,120
Less: undistributed earnings allocated to participating securities                   (8,361,755) (6,717,120)
Net income (loss) allocable to common shares                 (260,835)    
Basic weighted average common shares outstanding                 6,847,697 1,083,276 1,025,602
Basic income (loss) per common share $ (0.14) $ 0.14 $ (0.24) $ (2.93) $ (1.92) $ 0.00 $ 0.00 $ 0.00 $ (0.04) $ 0.00 $ 0.00
Net income (loss) (3,205,000) 6,604,000 (294,000) (3,366,000) (2,105,000) 2,601,000 3,546,000 4,320,000 (260,835) 8,361,755 6,717,120
Less: undistributed earnings allocated to participating securities and other add-backs to net income (loss)                   (8,361,755) (6,717,120)
Net income (loss) allocable to common shares                 $ (260,835)    
Basic weighted average common shares outstanding                 6,847,697 1,083,276 1,025,602
Effect of dilutive securities                         
Diluted weighted average common shares outstanding                 6,847,697 1,083,276 1,025,602
Diluted income (loss) per common share $ (0.14) $ 0.01 $ (0.24) $ (2.93) $ (1.92) $ 0.00 $ 0.00 $ 0.00 $ (0.04) $ 0.00 $ 0.00