Share Based Compensation (Tables)

6 Months Ended

Jul. 31, 2012

Share-based Compensation [Abstract]

Weighted average assumptions by grant year

The fair value of options granted during the three months ended April 30, 2012 was estimated using the following weighted average assumptions:

Risk-free interest rate	0.86		%
Expected dividend yield	1.33		%
Expected volatility factor	49.65		%
Expected option term (in years)	3.75
Weighted average grant date fair value	$	10.96