Annual report pursuant to Section 13 and 15(d)

401(K) Plan (Details)

v3.3.1.900
401(K) Plan (Details)
12 Months Ended
Nov. 30, 2015
plan
Defined Benefit Plan Disclosure [Line Items]  
Number of 401 (K) plans 2
Profit sharing criteria minimum age Requirement 21 years
Employees salary reduction contributions 25.00%
Union 401K Plan  
Defined Benefit Plan Disclosure [Line Items]  
Number of 401 (K) plans 1
NonUnionPlan401K  
Defined Benefit Plan Disclosure [Line Items]  
Number of 401 (K) plans 1
Profit sharing criteria period of employees service 6 months