Stock Option Plans (Tables)

6 Months Ended

Jul. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes options granted, exercised and canceled or expired during the six months ended July 31, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding at January 31, 2013		168,755		$	12.46
Exercised		(62,915	)	$	12.63
Outstanding and exercisable at July 31, 2013		105,840		$	12.37		0.8	$	2,543