Stock-Based Compensation (Tables)

3 Months Ended

Apr. 30, 2013

Stock-Based Compensation [Abstract]

Summary of activity under Option and Stock Plans

Options	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contract Term (Years)		Weighted Average Fair Value
Outstanding, January 31, 2013		926,224	$	14.34		5.39	$	5.93
Granted		71,000	$	16.11
Forfeited		—	$	—
Exercised		—	$	—
Outstanding, April 30, 2013		997,224	$	14.47		5.63	$	5.74
Exercisable, April 30, 2013		700,724	$	13.17		4.78	$	5.94
Exercisable, January 31, 2013		537,724	$	12.16		4.46	$	6.12

Summary of change in number of non-vested options to purchase shares of common stock

	Shares			Weighted Average Fair Value
Nonvested, January 31, 2013		388,500		$	5.67
Granted		71,000		$	3.27
Forfeited		—		$	—
Vested		(163,000	)	$	5.35
Nonvested, April 30, 2013		296,500		$	5.27

Summary of assumptions used to estimate fair value of stock options granted

	Three Months Ended April 30, 2013
Dividend yield		3.73	%
Expected volatility		33.44	%
Risk-free interest rate		0.81	%
Expected life in years		5.5