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EARNINGS PER COMMON SHARE - Additional Information (Detail)
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Antidilutive Stock Options
   
Earnings Per Share Disclosure [Line Items]    
Stock options and warrants with an exercise price greater than the average market price of the common shares not included in the computation of net income per diluted share 434,976 320,963
Antidilutive Warrants
   
Earnings Per Share Disclosure [Line Items]    
Stock options and warrants with an exercise price greater than the average market price of the common shares not included in the computation of net income per diluted share 465,117 465,117