Stock-Based Compensation-Range of Assumptions for Various Stock Compensation Plans (Details)	3 Months Ended
Feb. 29, 2016	Feb. 28, 2015
Share-based Compensation [Abstract]
Risk-free interest rate, minimum	0.00%	0.00%
Risk-free interest rate, maximum	0.00%	0.00%
Expected volatility, minimum	0.00%	0.00%
Expected volatility, maximum	0.00%	0.00%

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration