Stockholders' Equity (Narratives) (Details) - Debt Instrument, Name [Domain] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2015	May. 31, 2014	Nov. 30, 2014	Jul. 17, 2014
Equity [Abstract]
Dividend paid in each quarter (in dollars per share)	$ 0.0250	$ 0.0250	$ 0.050	$ 0.05
Debt Instrument [Line Items]
Number of common stock, authorized, approved under a board approved stock repurchase program	4,000,000		4,000,000
Common stock reserve, shares	12,602,735		12,602,735
Treasury Stock, Value	$ 446,776		$ 446,776		$ 446,476
Director Stock Units [Domain]
Debt Instrument [Line Items]
Number of common stock, authorized, approved under a board approved stock repurchase program						680,000