Quarterly report pursuant to Section 13 or 15(d)

Proxy Contests - Additional Information (Detail)

v2.4.0.8
Proxy Contests - Additional Information (Detail) (USD $)
 3 Months Ended 9 Months Ended
Aug. 31, 2014
Participant
Aug. 31, 2013
Aug. 31, 2014
Participant
Aug. 31, 2013
Nov. 30, 2013
May 30, 2012
Directors
Aug. 25, 2011
May 09, 2011
Directors
Compensation Related Costs [Abstract]                
Number of directors nominated           6   5
Cash transferred to trust             $ 2,500,000  
Legal fees paid 0 19,122 1,790 68,843        
Balance in the trust $ 0   $ 0   $ 764,192      
Total number of participants 3   3