Note C - Finance Receivables, Net (Details Textual)			3 Months Ended
	May 31, 2016	May 30, 2016	Jul. 31, 2017	Jul. 31, 2016
Financing Receivable Interest Rate			16.00%
Finance Receivables, Weighted Average Interest Rate			16.00%
Finance Receivables, Number of Loan Classes			1
Finance Receivables, Number of Risk Pools			1
Net Charge Offs as Percentage of Average Finance Receivables			6.40%	6.20%
Collections as Percentage of Average Financing Receivables			12.40%	13.00%
Delinquencies Greater Than 30 Days as Percentage of Average Financing Receivables			4.60%	4.40%
Minimum [Member]
Financing Receivable Interest Rate			15.00%
Financing Receivable Payment Period			1 year 180 days
Maximum [Member]
Financing Receivable Interest Rate	16.50%	15.00%	16.50%
Financing Receivable Payment Period			3 years 180 days