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CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Jan. 31, 2014
Jan. 31, 2013
Statement Of Financial Position [Abstract]    
Allowance for doubtful accounts and sales discounts on accounts receivable (in dollars) $ 54,987 $ 45,947
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued      
Preferred stock, shares outstanding      
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 80,000,000 80,000,000
Common stock, shares issued 20,935,804 20,616,957
Treasury stock, shares 492,225 492,225