Share Based Compensation (Tables)

3 Months Ended

Apr. 30, 2016

Share-based Compensation [Abstract]

Weighted average assumptions by grant year

The weighted average assumptions used for the Black-Scholes option pricing model by grant year are as follows:

	Three Months Ended
	April 30, 2016		April 30, 2015
Risk-free interest rate	1.05	%	1.34	%
Expected dividend yield	3.33	%	2.59	%
Expected volatility factor	32.61	%	36.81	%
Expected option term (in years)	4.00		3.75
Weighted average grant date fair value	$3.05		$4.78