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Earnings (Loss) Per Common Share - Additional Information (Detail)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Stock Options
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Stock excluded from computation of earnings per share 1,493,505 492,465
Warrants
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Stock excluded from computation of earnings per share 1,635,000 3,036,959