Business And Summary Of Significant Accounting Policies (Details) (USD $)	3 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Jan. 31, 2014
Accounting Policies [Abstract]
Operating Expenses, Restatement	$ 12,236,000	$ 3,023,000
Accounts receivable sold	227,200,000		263,700,000
Discount fees on sale of accounts receivable	$ 1,300,000	$ 600,000