Stock Based Compensation (Schedule Of Stock Options Activity) (Details)	3 Months Ended
	Apr. 30, 2014	Jan. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share Based Compensation Arrangement By Share Based Payment Award Options And Stock Settled SAR Outstanding Number	87,944	329,788
Stock Issued During Period Shares Stock Options And SARs Exercised	241,844