Note C - Finance Receivables (Details) - Average Financing Receivable Contract Terms	Jan. 31, 2014	Jan. 31, 2013
Average Financing Receivable Contract Terms [Abstract]
Average originating contract term (in months)	27 months 21 days	28 months 9 days
Portfolio weighted average contract term, including modifications (in months)	29 months 15 days	28 months 21 days