XML 67 R50.htm IDEA: XBRL DOCUMENT v3.3.1.900
Income Taxes - Provision for Income Taxes from Continuing Operations (Parenthetical) (Details) - USD ($)
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Income Tax Disclosure [Abstract]    
Provision (benefit) recognized on the income (loss) from discontinued operations $ 0 $ 0