Income Taxes (Tables)

9 Months Ended

Oct. 31, 2012

Notes To Financial Statements [Abstract]

Provision for Income Taxes

The provision for income taxes was comprised of the following:

	Three months ended October 31,						Nine months ended October 31,
	2012			2011			2012			2011
Income tax expense (benefit)	$	1,148		$	(1,445	)	$	(835	)	$	(4,429	)
Effective tax rate	3.5		%	(6.4		)%	(1.1		)%	(20.5		)%