Earnings Per Share - (Tables)

3 Months Ended

Oct. 31, 2015

Earnings Per Share Disclosure [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

				Three Months Ended				Nine Months Ended
				October 31, 2015		November 1, 2014		October 31, 2015		November 1, 2014
		(Dollars in thousands)
Numerator
	Net earnings		$	8,319	$	5,692	$	54,996	$	51,350
	Earnings allocated to non-vested equity awards			(175)		(113)		(1,145)		(1,001)
	Net earnings available to common stockholders		$	8,144	$	5,579	$	53,851	$	50,349
Denominator
	Basic weighted average common shares outstanding			27,368,931		27,359,660		27,396,760		27,673,293
	Dilutive effect of stock options			5,234		4,493		5,703		2,640
	Diluted weighted average common shares outstanding			27,374,165		27,364,153		27,402,463		27,675,933
Net income per common share
	Basic earnings per share (Class A and B Shares)		$	0.30	$	0.20	$	1.97	$	1.82
	Diluted earnings per share (Class A and B Shares)		$	0.30	$	0.20	$	1.97	$	1.82