Receivables (Schedule Of Receivables Based On Year Of Origination) (Details) (Emerald Advance lines of credit, USD $) In Thousands, unless otherwise specified	Jul. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 23,078
Year Of Origination2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	4,350
Year Of Origination2013 [Member] [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	1,614
Year Of Origination 2012 and prior
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	4,496
Revolving Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Gross	$ 12,618