Stock-Based Compensation (Tables)

6 Months Ended

Jul. 31, 2012

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, 2012		817,000		$	12.10		4.94	$	5.68
Granted		173,000		$	16.32
Forfeited		(30,000	)	$	8.66
Exercised		(17,000	)	$	6.70
Outstanding, July 31, 2012		943,000		$	13.08		5.04	$	5.68
Exercisable, July 31, 2012		650,000		$	11.44		4.54	$	5.76
Exercisable, January 31, 2012		605,000		$	11.47		4.89	$	5.89

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

	Shares			Weighted Average Fair Value
Nonvested, January 31, 2012		212,000		$	5.09
Granted		173,000		$	5.29
Forfeited		(5,000	)	$	6.32
Vested		(87,000	)	$	3.99
Nonvested, July 31, 2012		293,000		$	5.51

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

	Six Months Ended July 31, 2012
Dividend yield		—
Expected volatility		36.21	%
Risk-free interest rate		2.00	%
Expected life in years		4.35