Operating Segments and Related Disclosures - Summary of Customers that Represented More than 10% of Net Sales (Details) - Customers [Member] - Sales Revenue, Net [Member]	3 Months Ended		6 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2015	May. 31, 2014
Lockheed Martin Corp [Member]
Revenue, Major Customer [Line Items]
Percentage of Net Sales	26.00%	30.00%	27.00%	25.00%
United Launch Alliance [Member]
Revenue, Major Customer [Line Items]
Percentage of Net Sales	19.00%	25.00%	18.00%	26.00%
Raytheon Company [Member]
Revenue, Major Customer [Line Items]
Percentage of Net Sales	20.00%	18.00%	21.00%	18.00%
NASA [Member]
Revenue, Major Customer [Line Items]
Percentage of Net Sales	11.00%	11.00%	12.00%	13.00%