Annual report pursuant to Section 13 and 15(d)

401(K) Plan - Additional Information (Detail)

v2.4.0.6
401(K) Plan - Additional Information (Detail)
12 Months Ended
Nov. 30, 2012
Defined Contribution Plan Disclosure [Line Items]  
Profit sharing criteria period of employees service Over one year
Profit sharing criteria minimum age Requirement 21 years
Employees salary reduction contributions Up to twenty-five percent