Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2014
Oct. 31, 2013
Income Tax Disclosure [Abstract]        
Income tax benefit from continuing operations $ (348) $ (423) $ (415) $ (784)
Effective income tax rate reconciliation, at federal statutory income tax rate     35.00%